Properly restore systemd collector with original architecture

- Restore service discovery caching with configurable intervals
- Add excluded services filtering logic
- Implement complete wildcard pattern matching (*prefix, suffix*, glob)
- Add ServiceStatusInfo caching from systemctl commands
- Restore cached service status retrieval to avoid repeated systemctl calls
- Add proper systemctl command error handling

All functionality now matches pre-refactor implementation.

.gitea/workflows/release.yml

@@ -113,13 +113,13 @@ jobs:
           NIX_HASH="sha256-$(python3 -c "import base64, binascii; print(base64.b64encode(binascii.unhexlify('$NEW_HASH')).decode())")"
           
           # Update the NixOS configuration
-          sed -i "s|version = \"v[^\"]*\"|version = \"$VERSION\"|" hosts/common/cm-dashboard.nix
-          sed -i "s|sha256 = \"sha256-[^\"]*\"|sha256 = \"$NIX_HASH\"|" hosts/common/cm-dashboard.nix
+          sed -i "s|version = \"v[^\"]*\"|version = \"$VERSION\"|" hosts/services/cm-dashboard.nix
+          sed -i "s|sha256 = \"sha256-[^\"]*\"|sha256 = \"$NIX_HASH\"|" hosts/services/cm-dashboard.nix
           
           # Commit and push changes
           git config user.name "Gitea Actions"
           git config user.email "actions@gitea.cmtec.se"
-          git add hosts/common/cm-dashboard.nix
+          git add hosts/services/cm-dashboard.nix
           git commit -m "Auto-update cm-dashboard to $VERSION
 
           - Update version to $VERSION with automated release

AGENTS.md

@@ -1,3 +0,0 @@
-# Agent Guide
-
-Agents working in this repo must follow the instructions in `CLAUDE.md`.

CLAUDE.md

@@ -2,277 +2,173 @@
 
 ## Overview
 
-A high-performance Rust-based TUI dashboard for monitoring CMTEC infrastructure. Built to replace Glance with a custom solution tailored for our specific monitoring needs and ZMQ-based metric collection.
+A high-performance Rust-based TUI dashboard for monitoring CMTEC infrastructure. Built with ZMQ-based metric collection and individual metrics architecture.
 
-## Implementation Strategy
+## Current Features
 
-### Current Implementation Status
+### Core Functionality
 
-**System Panel Enhancement - COMPLETED** ✅
+- **Real-time Monitoring**: CPU, RAM, Storage, and Service status
+- **Service Management**: Start/stop services with user-stopped tracking
+- **Multi-host Support**: Monitor multiple servers from single dashboard
+- **NixOS Integration**: System rebuild via SSH + tmux popup
+- **Backup Monitoring**: Borgbackup status and scheduling
 
-All system panel features successfully implemented:
-- ✅ **NixOS Collector**: Created collector for version and active users  
-- ✅ **System Widget**: Unified widget combining NixOS, CPU, RAM, and Storage
-- ✅ **Build Display**: Shows NixOS build information without codename
-- ✅ **Active Users**: Displays currently logged in users
-- ✅ **Tmpfs Monitoring**: Added /tmp usage to RAM section
-- ✅ **Agent Deployment**: NixOS collector working in production
+### User-Stopped Service Tracking
 
-**Simplified Navigation and Service Management - COMPLETED** ✅
+- Services stopped via dashboard are marked as "user-stopped"
+- User-stopped services report Status::OK instead of Warning
+- Prevents false alerts during intentional maintenance
+- Persistent storage survives agent restarts
+- Automatic flag clearing when services are restarted via dashboard
 
-All navigation and service management features successfully implemented:
-- ✅ **Direct Service Control**: Up/Down (or j/k) arrows directly control service selection
-- ✅ **Always Visible Selection**: Service selection highlighting always visible (no panel focus needed)
-- ✅ **Complete Service Discovery**: All configured services visible regardless of state
-- ✅ **Transitional Visual Feedback**: Service operations show directional arrows (↑ ↓ ↻)
-- ✅ **Simplified Interface**: Removed panel switching complexity, uniform appearance
-- ✅ **Vi-style Navigation**: Added j/k keys for vim users alongside arrow keys
+### Custom Service Logs
 
-**Current Status - October 28, 2025:**
-- All service discovery and display features working correctly ✅
-- Simplified navigation system implemented ✅
-- Service selection always visible with direct control ✅
-- Complete service visibility (all configured services show regardless of state) ✅
-- Transitional service icons working with proper color handling ✅
-- Build display working: "Build: 25.05.20251004.3bcc93c" ✅
-- Agent version display working: "Agent: v0.1.33" ✅
-- Cross-host version comparison implemented ✅
-- Automated binary release system working ✅
-- SMART data consolidated into disk collector ✅
+- Configure service-specific log file paths per host in dashboard config
+- Press `L` on any service to view custom log files via `tail -f`
+- Configuration format in dashboard config:
 
-**RESOLVED - Remote Rebuild Functionality:**
-- ✅ **System Rebuild**: Now uses simple SSH + tmux popup approach
-- ✅ **Process Isolation**: Rebuild runs independently via SSH, survives agent/dashboard restarts
-- ✅ **Configuration**: SSH user and rebuild alias configurable in dashboard config
-- ✅ **Service Control**: Works correctly for start/stop/restart of services
-
-**Solution Implemented:**
-- Replaced complex SystemRebuild command infrastructure with direct tmux popup
-- Uses `tmux display-popup "ssh -tt {user}@{hostname} 'bash -ic {alias}'"`
-- Configurable SSH user and rebuild alias in dashboard config
-- Eliminates all agent crashes during rebuilds
-- Simple, reliable, and follows standard tmux interface patterns
-
-**Current Layout:**
-```
-NixOS:
-Build: 25.05.20251004.3bcc93c
-Agent: v0.1.17   # Shows agent version from Cargo.toml
-Active users: cm, simon
-CPU:
-● Load: 0.02 0.31 0.86 • 3000MHz
-RAM:
-● Usage: 33% 2.6GB/7.6GB  
-● /tmp: 0% 0B/2.0GB  
-Storage:  
-● root (Single):  
- ├─ ● nvme0n1 W: 1%
- └─ ● 18% 167.4GB/928.2GB
+```toml
+[service_logs]
+hostname1 = [
+  { service_name = "nginx", log_file_path = "/var/log/nginx/access.log" },
+  { service_name = "app", log_file_path = "/var/log/myapp/app.log" }
+]
+hostname2 = [
+  { service_name = "database", log_file_path = "/var/log/postgres/postgres.log" }
+]
 ```
 
-**System panel layout fully implemented with blue tree symbols ✅**
-**Tree symbols now use consistent blue theming across all panels ✅**
-**Overflow handling restored for all widgets ("... and X more") ✅**
-**Agent version display working correctly ✅**
-**Cross-host version comparison logging warnings ✅**
-**Backup panel visibility fixed - only shows when meaningful data exists ✅**
-**SSH-based rebuild system fully implemented and working ✅**
+### Service Management
 
-### Current Simplified Navigation Implementation
+- **Direct Control**: Arrow keys (↑↓) or vim keys (j/k) navigate services
+- **Service Actions**:
+  - `s` - Start service (sends UserStart command)
+  - `S` - Stop service (sends UserStop command)
+  - `J` - Show service logs (journalctl in tmux popup)
+  - `L` - Show custom log files (tail -f custom paths in tmux popup)
+  - `R` - Rebuild current host
+- **Visual Status**: Green ● (active), Yellow ◐ (inactive), Red ◯ (failed)
+- **Transitional Icons**: Blue arrows during operations
 
-**Navigation Controls:**
-- **Tab**: Switch between hosts (cmbox, srv01, srv02, steambox, etc.)
-- **↑↓ or j/k**: Move service selection cursor (always works)
+### Navigation
+
+- **Tab**: Switch between hosts
+- **↑↓ or j/k**: Select services
+- **s**: Start selected service (UserStart)
+- **S**: Stop selected service (UserStop)
+- **J**: Show service logs (journalctl)
+- **L**: Show custom log files
+- **R**: Rebuild current host
+- **B**: Run backup on current host
 - **q**: Quit dashboard
 
-**Service Control:**
-- **s**: Start selected service
-- **S**: Stop selected service  
-- **R**: Rebuild current host (works from any context)
+## Core Architecture Principles
 
-**Visual Features:**
-- **Service Selection**: Always visible blue background highlighting current service
-- **Status Icons**: Green ● (active), Yellow ◐ (inactive), Red ◯ (failed), ? (unknown)
-- **Transitional Icons**: Blue ↑ (starting), ↓ (stopping), ↻ (restarting) when not selected
-- **Transitional Icons**: Dark gray arrows when service is selected (for visibility)
-- **Uniform Interface**: All panels have consistent appearance (no focus borders)
+### Structured Data Architecture (✅ IMPLEMENTED v0.1.131)
 
-### Service Discovery and Display - WORKING ✅
+Complete migration from string-based metrics to structured JSON data. Eliminates all string parsing bugs and provides type-safe data access.
 
-**All Issues Resolved (as of 2025-10-28):**
-- ✅ **Complete Service Discovery**: Uses `systemctl list-unit-files` + `list-units --all` for comprehensive service detection
-- ✅ **All Services Visible**: Shows all configured services regardless of current state (active/inactive)
-- ✅ **Proper Status Display**: Active services show green ●, inactive show yellow ◐, failed show red ◯
-- ✅ **Transitional Icons**: Visual feedback during service operations with proper color handling
-- ✅ **Simplified Navigation**: Removed panel complexity, direct service control always available
-- ✅ **Service Control**: Start (s) and Stop (S) commands work from anywhere
-- ✅ **System Rebuild**: SSH + tmux popup approach for reliable remote rebuilds
+**Previous (String Metrics):**
 
-### Terminal Popup for Real-time Output - IMPLEMENTED ✅
+- ❌ Agent sent individual metrics with string names like `disk_nvme0n1_temperature`
+- ❌ Dashboard parsed metric names with underscore counting and string splitting
+- ❌ Complex and error-prone metric filtering and extraction logic
 
-**Status (as of 2025-10-26):**
-- ✅ **Terminal Popup UI**: 80% screen coverage with terminal styling and color-coded output
-- ✅ **ZMQ Streaming Protocol**: CommandOutputMessage for real-time output transmission
-- ✅ **Keyboard Controls**: ESC/Q to close, ↑↓ to scroll, manual close (no auto-close)
-- ✅ **Real-time Display**: Live streaming of command output as it happens
-- ✅ **Version-based Agent Reporting**: Shows "Agent: v0.1.13" instead of nix store hash
+**Current (Structured Data):**
 
-**Current Implementation Issues:**
-- ❌ **Agent Process Crashes**: Agent dies during nixos-rebuild execution
-- ❌ **Inconsistent Output**: Different outputs each time 'R' is pressed
-- ❌ **Limited Output Visibility**: Not capturing all nixos-rebuild progress
-
-**PLANNED SOLUTION - Systemd Service Approach:**
-
-**Problem**: Direct nixos-rebuild execution in agent causes process crashes and inconsistent output.
-
-**Solution**: Create dedicated systemd service for rebuild operations.
-
-**Implementation Plan:**
-1. **NixOS Systemd Service**:
-   ```nix
-   systemd.services.cm-rebuild = {
-     description = "CM Dashboard NixOS Rebuild";
-     serviceConfig = {
-       Type = "oneshot";
-       ExecStart = "${pkgs.nixos-rebuild}/bin/nixos-rebuild switch --flake . --option sandbox false";
-       WorkingDirectory = "/var/lib/cm-dashboard/nixos-config";
-       User = "root";
-       StandardOutput = "journal";
-       StandardError = "journal";
-     };
-   };
-   ```
-
-2. **Agent Modification**:
-   - Replace direct nixos-rebuild execution with: `systemctl start cm-rebuild`
-   - Stream output via: `journalctl -u cm-rebuild -f --no-pager`
-   - Monitor service status for completion detection
-
-3. **Benefits**:
-   - **Process Isolation**: Service runs independently, won't crash agent
-   - **Consistent Output**: Always same deterministic rebuild process
-   - **Proper Logging**: systemd journal handles all output management
-   - **Resource Management**: systemd manages cleanup and resource limits
-   - **Status Tracking**: Can query service status (running/failed/success)
-
-**Next Priority**: Implement systemd service approach for reliable rebuild operations.
-
-**Keyboard Controls Status:**
-- **Services Panel**: 
-  - R (restart) ✅ Working
-  - s (start) ✅ Working  
-  - S (stop) ✅ Working
-- **System Panel**: R (nixos-rebuild) ✅ Working with --option sandbox false
-- **Backup Panel**: B (trigger backup) ❓ Not implemented
-
-**Visual Feedback Implementation - IN PROGRESS:**
-
-Context-appropriate progress indicators for each panel:
-
-**Services Panel** (Service status transitions):
-```
-● nginx          active    →  ⏳ nginx      restarting  →  ● nginx          active
-● docker         active    →  ⏳ docker     stopping    →  ● docker         inactive  
+```json
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.131",
+  "timestamp": 1763926877,
+  "system": {
+    "cpu": {
+      "load_1min": 3.5,
+      "load_5min": 3.57,
+      "load_15min": 3.58,
+      "frequency_mhz": 1500,
+      "temperature_celsius": 45.2
+    },
+    "memory": {
+      "usage_percent": 25.0,
+      "total_gb": 23.3,
+      "used_gb": 5.9,
+      "swap_total_gb": 10.7,
+      "swap_used_gb": 0.99,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.0,
+          "used_gb": 0.3,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 29.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "/",
+              "usage_percent": 24.0,
+              "used_gb": 224.9,
+              "total_gb": 928.2
+            }
+          ]
+        }
+      ],
+      "pools": [
+        {
+          "name": "srv_media",
+          "mount": "/srv/media",
+          "type": "mergerfs",
+          "health": "healthy",
+          "usage_percent": 63.0,
+          "used_gb": 2355.2,
+          "total_gb": 3686.4,
+          "data_drives": [{ "name": "sdb", "temperature_celsius": 24.0 }],
+          "parity_drives": [{ "name": "sdc", "temperature_celsius": 24.0 }]
+        }
+      ]
+    }
+  },
+  "services": [
+    { "name": "sshd", "status": "active", "memory_mb": 4.5, "disk_gb": 0.0 }
+  ],
+  "backup": {
+    "status": "completed",
+    "last_run": 1763920000,
+    "next_scheduled": 1764006400,
+    "total_size_gb": 150.5,
+    "repository_health": "ok"
+  }
+}
 ```
 
-**System Panel** (Build progress in NixOS section):
-```
-NixOS:
-Build: 25.05.20251004.3bcc93c    →    Build: [████████████     ] 65%
-Active users: cm, simon               Active users: cm, simon
-```
-
-**Backup Panel** (OnGoing status with progress):
-```
-Latest backup:              →    Latest backup:
-● 2024-10-23 14:32:15            ● OnGoing  
-└─ Duration: 1.3m                 └─ [██████       ] 60%
-```
-
-**Critical Configuration Hash Fix - HIGH PRIORITY:**
-
-**Problem:** Configuration hash currently shows git commit hash instead of actual deployed system hash.
-
-**Current (incorrect):** 
-- Shows git hash: `db11f82` (source repository commit)
-- Not accurate - doesn't reflect what's actually deployed
-
-**Target (correct):**
-- Show nix store hash: `d8ivwiar` (first 8 chars from deployed system)  
-- Source: `/nix/store/d8ivwiarhwhgqzskj6q2482r58z46qjf-nixos-system-cmbox-25.05.20251004.3bcc93c`
-- Pattern: Extract hash from `/nix/store/HASH-nixos-system-HOSTNAME-VERSION`
-
-**Benefits:**
-1. **Deployment Verification:** Confirms rebuild actually succeeded
-2. **Accurate Status:** Shows what's truly running, not just source
-3. **Rebuild Completion Detection:** Hash change = rebuild completed
-4. **Rollback Tracking:** Each deployment has unique identifier
-
-**Implementation Required:**
-1. Agent extracts nix store hash from `ls -la /run/current-system` 
-2. Reports this as `system_config_hash` metric instead of git hash
-3. Dashboard displays first 8 characters: `Config: d8ivwiar`
-
-**Next Session Priority Tasks:**
-
-**Remaining Features:**
-1. **Fix Configuration Hash Display (CRITICAL)**:
-   - Use nix store hash instead of git commit hash
-   - Extract from `/run/current-system` -> `/nix/store/HASH-nixos-system-*`
-   - Enables proper rebuild completion detection
-
-2. **Command Response Protocol**:
-   - Agent sends command completion/failure back to dashboard via ZMQ
-   - Dashboard updates UI status from ⏳ to ● when commands complete
-   - Clear success/failure status after timeout
-
-3. **Backup Panel Features**:
-   - Implement backup trigger functionality (B key)
-   - Complete visual feedback for backup operations
-   - Add backup progress indicators
-
-**Enhancement Tasks:**
-- Add confirmation dialogs for destructive actions (stop/restart/rebuild)
-- Implement command history/logging
-- Add keyboard shortcuts help overlay
-
-**Future Enhanced Navigation:**
-- Add Page Up/Down for faster scrolling through long service lists
-- Implement search/filter functionality for services
-- Add jump-to-service shortcuts (first letter navigation)
-
-**Future Advanced Features:**
-- Service dependency visualization
-- Historical service status tracking
-- Real-time log viewing integration
-
-## Core Architecture Principles - CRITICAL
-
-### Individual Metrics Philosophy
-
-**NEW ARCHITECTURE**: Agent collects individual metrics, dashboard composes widgets from those metrics.
+- ✅ Agent sends structured JSON over ZMQ (no legacy support)
+- ✅ Type-safe data access: `data.system.storage.drives[0].temperature_celsius`
+- ✅ Complete metric coverage: CPU, memory, storage, services, backup
+- ✅ Backward compatibility via bridge conversion to existing UI widgets
+- ✅ All string parsing bugs eliminated
 
 ### Maintenance Mode
 
-**Purpose:**
-
-- Suppress email notifications during planned maintenance or backups
-- Prevents false alerts when services are intentionally stopped
-
-**Implementation:**
-
 - Agent checks for `/tmp/cm-maintenance` file before sending notifications
 - File presence suppresses all email notifications while continuing monitoring
 - Dashboard continues to show real status, only notifications are blocked
 
-**Usage:**
+Usage:
 
 ```bash
 # Enable maintenance mode
 touch /tmp/cm-maintenance
 
-# Run maintenance tasks (backups, service restarts, etc.)
+# Run maintenance tasks
 systemctl stop service
 # ... maintenance work ...
 systemctl start service
@@ -281,43 +177,159 @@ systemctl start service
 rm /tmp/cm-maintenance
 ```
 
-**NixOS Integration:**
+## Development and Deployment Architecture
 
-- Borgbackup script automatically creates/removes maintenance file
-- Automatic cleanup via trap ensures maintenance mode doesn't stick
-- All cinfiguration are shall be done from nixos config
+### Development Path
 
-**ARCHITECTURE ENFORCEMENT**:
+- **Location:** `~/projects/cm-dashboard`
+- **Purpose:** Development workflow only - for committing new code
+- **Access:** Only for developers to commit changes
 
-- **ZERO legacy code reuse** - Fresh implementation following ARCHITECT.md exactly
-- **Individual metrics only** - NO grouped metric structures
-- **Reference-only legacy** - Study old functionality, implement new architecture
-- **Clean slate mindset** - Build as if legacy codebase never existed
+### Deployment Path
 
-**Implementation Rules**:
+- **Location:** `/var/lib/cm-dashboard/nixos-config`
+- **Purpose:** Production deployment only - agent clones/pulls from git
+- **Workflow:** git pull → `/var/lib/cm-dashboard/nixos-config` → nixos-rebuild
 
-1. **Individual Metrics**: Each metric is collected, transmitted, and stored individually
-2. **Agent Status Authority**: Agent calculates status for each metric using thresholds
-3. **Dashboard Composition**: Dashboard widgets subscribe to specific metrics by name
-4. **Status Aggregation**: Dashboard aggregates individual metric statuses for widget status
-   **Testing & Building**:
+### Git Flow
 
-- **Workspace builds**: `cargo build --workspace` for all testing
-- **Clean compilation**: Remove `target/` between architecture changes
-- **ZMQ testing**: Test agent-dashboard communication independently
-- **Widget testing**: Verify UI layout matches legacy appearance exactly
+```
+Development: ~/projects/cm-dashboard → git commit → git push
+Deployment:  git pull → /var/lib/cm-dashboard/nixos-config → rebuild
+```
 
-**NEVER in New Implementation**:
+## Automated Binary Release System
 
-- Copy/paste ANY code from legacy backup
-- Calculate status in dashboard widgets
-- Hardcode metric names in widgets (use const arrays)
+CM Dashboard uses automated binary releases instead of source builds.
 
-# Important Communication Guidelines
+### Creating New Releases
 
-NEVER write that you have "successfully implemented" something or generate extensive summary text without first verifying with the user that the implementation is correct. This wastes tokens. Keep responses concise.
+```bash
+cd ~/projects/cm-dashboard
+git tag v0.1.X
+git push origin v0.1.X
+```
 
-NEVER implement code without first getting explicit user agreement on the approach. Always ask for confirmation before proceeding with implementation.
+This automatically:
+
+- Builds static binaries with `RUSTFLAGS="-C target-feature=+crt-static"`
+- Creates GitHub-style release with tarball
+- Uploads binaries via Gitea API
+
+### NixOS Configuration Updates
+
+Edit `~/projects/nixosbox/hosts/services/cm-dashboard.nix`:
+
+```nix
+version = "v0.1.X";
+src = pkgs.fetchurl {
+  url = "https://gitea.cmtec.se/cm/cm-dashboard/releases/download/${version}/cm-dashboard-linux-x86_64.tar.gz";
+  sha256 = "sha256-NEW_HASH_HERE";
+};
+```
+
+### Get Release Hash
+
+```bash
+cd ~/projects/nixosbox
+nix-build --no-out-link -E 'with import <nixpkgs> {}; fetchurl {
+  url = "https://gitea.cmtec.se/cm/cm-dashboard/releases/download/v0.1.X/cm-dashboard-linux-x86_64.tar.gz";
+  sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
+}' 2>&1 | grep "got:"
+```
+
+### Building
+
+**Testing & Building:**
+
+- **Workspace builds**: `nix-shell -p openssl pkg-config --run "cargo build --workspace"`
+- **Clean compilation**: Remove `target/` between major changes
+
+## Enhanced Storage Pool Visualization
+
+### Auto-Discovery Architecture
+
+The dashboard uses automatic storage discovery to eliminate manual configuration complexity while providing intelligent storage pool grouping.
+
+### Discovery Process
+
+**At Agent Startup:**
+
+1. Parse `/proc/mounts` to identify all mounted filesystems
+2. Detect MergerFS pools by analyzing `fuse.mergerfs` mount sources
+3. Identify member disks and potential parity relationships via heuristics
+4. Store discovered storage topology for continuous monitoring
+5. Generate pool-aware metrics with hierarchical relationships
+
+**Continuous Monitoring:**
+
+- Use stored discovery data for efficient metric collection
+- Monitor individual drives for SMART data, temperature, wear
+- Calculate pool-level health based on member drive status
+- Generate enhanced metrics for dashboard visualization
+
+### Supported Storage Types
+
+**Single Disks:**
+
+- ext4, xfs, btrfs mounted directly
+- Individual drive monitoring with SMART data
+- Traditional single-disk display for root, boot, etc.
+
+**MergerFS Pools:**
+
+- Auto-detect from `/proc/mounts` fuse.mergerfs entries
+- Parse source paths to identify member disks (e.g., "/mnt/disk1:/mnt/disk2")
+- Heuristic parity disk detection (sequential device names, "parity" in path)
+- Pool health calculation (healthy/degraded/critical)
+- Hierarchical tree display with data/parity disk grouping
+
+**Future Extensions Ready:**
+
+- RAID arrays via `/proc/mdstat` parsing
+- ZFS pools via `zpool status` integration
+- LVM logical volumes via `lvs` discovery
+
+### Configuration
+
+```toml
+[collectors.disk]
+enabled = true
+auto_discover = true  # Default: true
+# Optional exclusions for special filesystems
+exclude_mount_points = ["/tmp", "/proc", "/sys", "/dev"]
+exclude_fs_types = ["tmpfs", "devtmpfs", "sysfs", "proc"]
+```
+
+### Display Format
+
+```
+CPU:
+● Load: 0.23 0.21 0.13
+  └─ Freq: 1048 MHz
+
+RAM:
+● Usage: 25% 5.8GB/23.3GB
+  ├─ ● /tmp: 2% 0.5GB/2GB
+  └─ ● /var/tmp: 0% 0GB/1.0GB
+
+Storage:
+● mergerfs (2+1):
+  ├─ Total: ● 63% 2355.2GB/3686.4GB
+  ├─ Data Disks:
+  │  ├─ ● sdb T: 24°C W: 5%
+  │  └─ ● sdd T: 27°C W: 5%
+  ├─ Parity: ● sdc T: 24°C W: 5%
+  └─ Mount: /srv/media
+
+● nvme0n1 T: 25C W: 4%
+  ├─ ● /: 55% 250.5GB/456.4GB
+  └─ ● /boot: 26% 0.3GB/1.0GB
+```
+
+## Important Communication Guidelines
+
+Keep responses concise and focused. Avoid extensive implementation summaries unless requested.
 
 ## Commit Message Guidelines
 
@@ -343,83 +355,108 @@ NEVER implement code without first getting explicit user agreement on the approa
 - ✅ "Restructure storage widget with improved layout"
 - ✅ "Update CPU thresholds to production values"
 
-## Development and Deployment Architecture
+## Completed Architecture Migration (v0.1.131)
 
-**CRITICAL:** Development and deployment paths are completely separate:
+## Complete Fix Plan (v0.1.140)
 
-### Development Path
-- **Location:** `~/projects/nixosbox` 
-- **Purpose:** Development workflow only - for committing new cm-dashboard code
-- **Access:** Only for developers to commit changes
-- **Code Access:** Running cm-dashboard code shall NEVER access this path
+**🎯 Goal: Fix ALL Issues - Display AND Core Functionality**
 
-### Deployment Path  
-- **Location:** `/var/lib/cm-dashboard/nixos-config`
-- **Purpose:** Production deployment only - agent clones/pulls from git
-- **Access:** Only cm-dashboard agent for deployment operations
-- **Workflow:** git pull → `/var/lib/cm-dashboard/nixos-config` → nixos-rebuild
+### Current Broken State (v0.1.139)
 
-### Git Flow
+**❌ What's Broken:**
 ```
-Development: ~/projects/nixosbox → git commit → git push
-Deployment:  git pull → /var/lib/cm-dashboard/nixos-config → rebuild
+✅ Data Collection: Agent collects structured data correctly
+❌ Storage Display: Shows wrong mount points, missing temperature/wear
+❌ Status Evaluation: Everything shows "OK" regardless of actual values
+❌ Notifications: Not working - can't send alerts when systems fail
+❌ Thresholds: Not being evaluated (CPU load, memory usage, disk temperature)
 ```
 
-## Automated Binary Release System
+**Root Cause:**
+During atomic migration, I removed core monitoring functionality and only fixed data collection, making the dashboard useless as a monitoring tool.
 
-**IMPLEMENTED:** cm-dashboard now uses automated binary releases instead of source builds.
+### Complete Fix Plan - Do Everything Right
 
-### Release Workflow
+#### Phase 1: Fix Storage Display (CURRENT)
+- ✅ Use `lsblk` instead of `findmnt` (eliminates `/nix/store` bind mount issue)
+- ✅ Add `sudo smartctl` for permissions
+- ✅ Fix NVMe SMART parsing (`Temperature:` and `Percentage Used:`)
+- 🔄 Test that dashboard shows: `● nvme0n1 T: 28°C W: 1%` correctly
 
-1. **Automated Release Creation**
-   - Gitea Actions workflow builds static binaries on tag push
-   - Creates release with `cm-dashboard-linux-x86_64.tar.gz` tarball
-   - No manual intervention required for binary generation
+#### Phase 2: Restore Status Evaluation System
+- **CPU Status**: Evaluate load averages against thresholds → Status::Warning/Critical
+- **Memory Status**: Evaluate usage_percent against thresholds → Status::Warning/Critical  
+- **Storage Status**: Evaluate temperature & usage against thresholds → Status::Warning/Critical
+- **Service Status**: Evaluate service states → Status::Warning if inactive
+- **Overall Host Status**: Aggregate component statuses → host-level status
 
-2. **Creating New Releases**
-   ```bash
-   cd ~/projects/cm-dashboard
-   git tag v0.1.X
-   git push origin v0.1.X
-   ```
-   
-   This automatically:
-   - Builds static binaries with `RUSTFLAGS="-C target-feature=+crt-static"`
-   - Creates GitHub-style release with tarball
-   - Uploads binaries via Gitea API
+#### Phase 3: Restore Notification System
+- **Status Change Detection**: Track when component status changes from OK→Warning/Critical
+- **Email Notifications**: Send alerts when status degrades
+- **Notification Rate Limiting**: Prevent spam (existing logic)
+- **Maintenance Mode**: Honor `/tmp/cm-maintenance` to suppress alerts
+- **Batched Notifications**: Group multiple alerts into single email
 
-3. **NixOS Configuration Updates**
-   Edit `~/projects/nixosbox/hosts/common/cm-dashboard.nix`:
+#### Phase 4: Integration & Testing
+- **AgentData Status Fields**: Add status fields to structured data
+- **Dashboard Status Display**: Show colored indicators based on actual status
+- **End-to-End Testing**: Verify alerts fire when thresholds exceeded
+- **Verify All Thresholds**: CPU load, memory usage, disk temperature, service states
 
-   ```nix
-   version = "v0.1.X";
-   src = pkgs.fetchurl {
-     url = "https://gitea.cmtec.se/cm/cm-dashboard/releases/download/${version}/cm-dashboard-linux-x86_64.tar.gz";
-     sha256 = "sha256-NEW_HASH_HERE";
-   };
-   ```
+### Target Architecture (CORRECT)
 
-4. **Get Release Hash**
-   ```bash
-   cd ~/projects/nixosbox
-   nix-build --no-out-link -E 'with import <nixpkgs> {}; fetchurl {
-     url = "https://gitea.cmtec.se/cm/cm-dashboard/releases/download/v0.1.X/cm-dashboard-linux-x86_64.tar.gz";
-     sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
-   }' 2>&1 | grep "got:"
-   ```
+**Complete Flow:**
+```
+Collectors → AgentData → StatusEvaluator → Notifications
+                      ↘                 ↗  
+                      ZMQ → Dashboard → Status Display
+```
 
-5. **Commit and Deploy**
-   ```bash
-   cd ~/projects/nixosbox
-   git add hosts/common/cm-dashboard.nix
-   git commit -m "Update cm-dashboard to v0.1.X with static binaries"
-   git push
-   ```
+**Key Components:**
+1. **Collectors**: Populate AgentData with raw metrics
+2. **StatusEvaluator**: Apply thresholds to AgentData → Status enum values  
+3. **Notifications**: Send emails on status changes (OK→Warning/Critical)
+4. **Dashboard**: Display data with correct status colors/indicators
 
-### Benefits
+### Implementation Rules
 
-- **No compilation overhead** on each host
-- **Consistent static binaries** across all hosts
-- **Faster deployments** - download vs compile
-- **No library dependency issues** - static linking
-- **Automated pipeline** - tag push triggers everything
+**MUST COMPLETE ALL:**
+- Fix storage display to show correct mount points and temperature
+- Restore working status evaluation (thresholds → Status enum)
+- Restore working notifications (email alerts on status changes)  
+- Test that monitoring actually works (alerts fire when appropriate)
+
+**NO SHORTCUTS:**
+- Don't commit partial fixes
+- Don't claim functionality works when it doesn't
+- Test every component thoroughly
+- Keep existing configuration and thresholds working
+
+**Success Criteria:**
+- Dashboard shows `● nvme0n1 T: 28°C W: 1%` format
+- High CPU load triggers Warning status and email alert
+- High memory usage triggers Warning status and email alert  
+- High disk temperature triggers Warning status and email alert
+- Failed services trigger Warning status and email alert
+- Maintenance mode suppresses notifications as expected
+
+## Implementation Rules
+
+1. **Agent Status Authority**: Agent calculates status for each metric using thresholds
+2. **Dashboard Composition**: Dashboard widgets subscribe to specific metrics by name
+3. **Status Aggregation**: Dashboard aggregates individual metric statuses for widget status
+
+**NEVER:**
+
+- Copy/paste ANY code from legacy implementations
+- Calculate status in dashboard widgets
+- Hardcode metric names in widgets (use const arrays)
+- Create files unless absolutely necessary for achieving goals
+- Create documentation files unless explicitly requested
+
+**ALWAYS:**
+
+- Prefer editing existing files to creating new ones
+- Follow existing code conventions and patterns
+- Use existing libraries and utilities
+- Follow security best practices

Cargo.lock

@@ -17,9 +17,9 @@ dependencies = [
 
 [[package]]
 name = "aho-corasick"
-version = "1.1.3"
+version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+checksum = "ddd31a130427c27518df266943a5308ed92d4b226cc639f5a8f1002816174301"
 dependencies = [
  "memchr",
 ]
@@ -71,22 +71,22 @@ dependencies = [
 
 [[package]]
 name = "anstyle-query"
-version = "1.1.4"
+version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e231f6134f61b71076a3eab506c379d4f36122f2af15a9ff04415ea4c3339e2"
+checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.10"
+version = "3.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e0633414522a32ffaac8ac6cc8f748e090c5717661fddeea04219e2344f5f2a"
+checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -95,6 +95,15 @@ version = "1.0.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a23eb6b1614318a8071c9b2521f36b424b2c83db5eb3a0fead4a6c0809af6e61"
 
+[[package]]
+name = "ar_archive_writer"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0c269894b6fe5e9d7ada0cf69b5bf847ff35bc25fc271f08e1d080fce80339a"
+dependencies = [
+ "object",
+]
+
 [[package]]
 name = "async-trait"
 version = "0.1.89"
@@ -144,9 +153,9 @@ checksum = "46c5e41b57b8bba42a04676d81cb89e9ee8e859a1a66f80a5a72e1cb76b34d43"
 
 [[package]]
 name = "bytes"
-version = "1.10.1"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d71b6127be86fdcfddb610f7182ac57211d4b18a3e9c82eb2d17662f2227ad6a"
+checksum = "b35204fbdc0b3f4446b89fc1ac2cf84a8a68971995d0bf2e925ec7cd960f9cb3"
 
 [[package]]
 name = "cassowary"
@@ -156,9 +165,9 @@ checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
 
 [[package]]
 name = "cc"
-version = "1.2.41"
+version = "1.2.46"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac9fe6cdbb24b6ade63616c0a0688e45bb56732262c158df3c0c4bea4ca47cb7"
+checksum = "b97463e1064cb1b1c1384ad0a0b9c8abd0988e2a91f52606c80ef14aadb63e36"
 dependencies = [
  "find-msvc-tools",
  "jobserver",
@@ -230,9 +239,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.49"
+version = "4.5.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4512b90fa68d3a9932cea5184017c5d200f5921df706d45e853537dea51508f"
+checksum = "aa8120877db0e5c011242f96806ce3c94e0737ab8108532a76a3300a01db2ab8"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -240,9 +249,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.49"
+version = "4.5.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0025e98baa12e766c67ba13ff4695a887a1eba19569aad00a472546795bd6730"
+checksum = "02576b399397b659c26064fbc92a75fede9d18ffd5f80ca1cd74ddab167016e1"
 dependencies = [
  "anstream",
  "anstyle",
@@ -270,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.40"
+version = "0.1.142"
 dependencies = [
  "anyhow",
  "chrono",
@@ -286,12 +295,13 @@ dependencies = [
  "toml",
  "tracing",
  "tracing-subscriber",
+ "wake-on-lan",
  "zmq",
 ]
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.40"
+version = "0.1.142"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -314,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.40"
+version = "0.1.142"
 dependencies = [
  "chrono",
  "serde",
@@ -502,9 +512,9 @@ checksum = "37909eebbb50d72f9059c3b6d82c0463f2ff062c9e95845c43a6c9c0355411be"
 
 [[package]]
 name = "find-msvc-tools"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52051878f80a721bb68ebfbc930e07b65ba72f2da88968ea5c06fd6ca3d3a127"
+checksum = "3a3076410a55c90011c298b04d0cfa770b00fa04e1e3c97d3f6c9de105a03844"
 
 [[package]]
 name = "fnv"
@@ -767,9 +777,9 @@ dependencies = [
 
 [[package]]
 name = "icu_collections"
-version = "2.0.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "200072f5d0e3614556f94a9930d5dc3e0662a652823904c3a75dc3b0af7fee47"
+checksum = "4c6b649701667bbe825c3b7e6388cb521c23d88644678e83c0c4d0a621a34b43"
 dependencies = [
  "displaydoc",
  "potential_utf",
@@ -780,9 +790,9 @@ dependencies = [
 
 [[package]]
 name = "icu_locale_core"
-version = "2.0.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0cde2700ccaed3872079a65fb1a78f6c0a36c91570f28755dda67bc8f7d9f00a"
+checksum = "edba7861004dd3714265b4db54a3c390e880ab658fec5f7db895fae2046b5bb6"
 dependencies = [
  "displaydoc",
  "litemap",
@@ -793,11 +803,10 @@ dependencies = [
 
 [[package]]
 name = "icu_normalizer"
-version = "2.0.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "436880e8e18df4d7bbc06d58432329d6458cc84531f7ac5f024e93deadb37979"
+checksum = "5f6c8828b67bf8908d82127b2054ea1b4427ff0230ee9141c54251934ab1b599"
 dependencies = [
- "displaydoc",
  "icu_collections",
  "icu_normalizer_data",
  "icu_properties",
@@ -808,42 +817,38 @@ dependencies = [
 
 [[package]]
 name = "icu_normalizer_data"
-version = "2.0.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00210d6893afc98edb752b664b8890f0ef174c8adbb8d0be9710fa66fbbf72d3"
+checksum = "7aedcccd01fc5fe81e6b489c15b247b8b0690feb23304303a9e560f37efc560a"
 
 [[package]]
 name = "icu_properties"
-version = "2.0.1"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "016c619c1eeb94efb86809b015c58f479963de65bdb6253345c1a1276f22e32b"
+checksum = "e93fcd3157766c0c8da2f8cff6ce651a31f0810eaa1c51ec363ef790bbb5fb99"
 dependencies = [
- "displaydoc",
  "icu_collections",
  "icu_locale_core",
  "icu_properties_data",
  "icu_provider",
- "potential_utf",
  "zerotrie",
  "zerovec",
 ]
 
 [[package]]
 name = "icu_properties_data"
-version = "2.0.1"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "298459143998310acd25ffe6810ed544932242d3f07083eee1084d83a71bd632"
+checksum = "02845b3647bb045f1100ecd6480ff52f34c35f82d9880e029d329c21d1054899"
 
 [[package]]
 name = "icu_provider"
-version = "2.0.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03c80da27b5f4187909049ee2d72f276f0d9f99a42c306bd0131ecfe04d8e5af"
+checksum = "85962cf0ce02e1e0a629cc34e7ca3e373ce20dda4c4d7294bbd0bf1fdb59e614"
 dependencies = [
  "displaydoc",
  "icu_locale_core",
- "stable_deref_trait",
- "tinystr",
  "writeable",
  "yoke",
  "zerofrom",
@@ -884,9 +889,12 @@ dependencies = [
 
 [[package]]
 name = "indoc"
-version = "2.0.6"
+version = "2.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4c7245a08504955605670dbf141fceab975f15ca21570696aebe9d2e71576bd"
+checksum = "79cf5c93f93228cf8efb3ba362535fb11199ac548a09ce117c9b1adc3030d706"
+dependencies = [
+ "rustversion",
+]
 
 [[package]]
 name = "ipnet"
@@ -896,9 +904,9 @@ checksum = "469fb0b9cefa57e3ef31275ee7cacb78f2fdca44e4765491884a2b119d4eb130"
 
 [[package]]
 name = "is_terminal_polyfill"
-version = "1.70.1"
+version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
+checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
 [[package]]
 name = "itertools"
@@ -927,9 +935,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.81"
+version = "0.3.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec48937a97411dcb524a265206ccd4c90bb711fca92b2792c407f268825b9305"
+checksum = "b011eec8cc36da2aab2d5cff675ec18454fad408585853910a202391cf9f8e65"
 dependencies = [
  "once_cell",
  "wasm-bindgen",
@@ -987,9 +995,9 @@ checksum = "df1d3c3b53da64cf5760482273a98e575c651a67eec7f77df96b5b642de8f039"
 
 [[package]]
 name = "litemap"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "241eaef5fd12c88705a01fc1066c48c4b36e0dd4377dcdc7ec3942cea7a69956"
+checksum = "6373607a59f0be73a39b6fe456b8192fcc3585f602af20751600e974dd455e77"
 
 [[package]]
 name = "lock_api"
@@ -1103,6 +1111,15 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "object"
+version = "0.32.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6a622008b6e321afc04970976f62ee297fdbaa6f95318ca343e3eebb9648441"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.21.3"
@@ -1111,15 +1128,15 @@ checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
 
 [[package]]
 name = "once_cell_polyfill"
-version = "1.70.1"
+version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4895175b425cb1f87721b59f0f286c2092bd4af812243672510e1ac53e2e0ad"
+checksum = "384b8ab6d37215f3c5301a95a4accb5d64aa607f1fcb26a11b5303878451b4fe"
 
 [[package]]
 name = "openssl"
-version = "0.10.74"
+version = "0.10.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24ad14dd45412269e1a30f52ad8f0664f0f4f4a89ee8fe28c3b3527021ebb654"
+checksum = "08838db121398ad17ab8531ce9de97b244589089e290a384c900cb9ff7434328"
 dependencies = [
  "bitflags 2.10.0",
  "cfg-if",
@@ -1149,9 +1166,9 @@ checksum = "d05e27ee213611ffe7d6348b942e8f942b37114c00cc03cec254295a4a17852e"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.110"
+version = "0.9.111"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a9f0075ba3c21b09f8e8b2026584b1d18d49388648f2fbbf3c97ea8deced8e2"
+checksum = "82cab2d520aa75e3c58898289429321eb788c3106963d0dc886ec7a5f4adc321"
 dependencies = [
  "cc",
  "libc",
@@ -1261,36 +1278,37 @@ checksum = "7edddbd0b52d732b21ad9a5fab5c704c14cd949e5e9a1ec5929a24fded1b904c"
 
 [[package]]
 name = "potential_utf"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84df19adbe5b5a0782edcab45899906947ab039ccf4573713735ee7de1e6b08a"
+checksum = "b73949432f5e2a09657003c25bca5e19a0e9c84f8058ca374f49e0ebe605af77"
 dependencies = [
  "zerovec",
 ]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.101"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89ae43fd86e4158d6db51ad8e2b80f313af9cc74f5c0e03ccb87de09998732de"
+checksum = "5ee95bc4ef87b8d5ba32e8b7714ccc834865276eab0aed5c9958d00ec45f49e8"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "psm"
-version = "0.1.27"
+version = "0.1.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e66fcd288453b748497d8fb18bccc83a16b0518e3906d4b8df0a8d42d93dbb1c"
+checksum = "d11f2fedc3b7dafdc2851bc52f277377c5473d378859be234bc7ebb593144d01"
 dependencies = [
+ "ar_archive_writer",
  "cc",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.41"
+version = "1.0.42"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce25767e7b499d1b604768e7cde645d14cc8584231ea6b295e9c9eb22c02e1d1"
+checksum = "a338cc41d27e6cc6dce6cefc13a0729dfbb81c262b1f519331575dd80ef3067f"
 dependencies = [
  "proc-macro2",
 ]
@@ -1610,9 +1628,9 @@ dependencies = [
 
 [[package]]
 name = "signal-hook-mio"
-version = "0.2.4"
+version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34db1a06d485c9142248b7a054f034b349b212551f3dfd19c94d45a754a217cd"
+checksum = "b75a19a7a740b25bc7944bdee6172368f988763b744e3d4dfe753f6b4ece40cc"
 dependencies = [
  "libc",
  "mio 0.8.11",
@@ -1715,9 +1733,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.107"
+version = "2.0.110"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2a26dbd934e5451d21ef060c018dae56fc073894c5a7896f882928a76e6d081b"
+checksum = "a99801b5bd34ede4cf3fc688c5919368fea4e4814a4664359503e6015b280aea"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1825,9 +1843,9 @@ dependencies = [
 
 [[package]]
 name = "tinystr"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d4f6d1145dcb577acf783d4e601bc1d76a13337bb54e6233add580b07344c8b"
+checksum = "42d3e9c45c09de15d06dd8acf5f4e0e399e85927b7f00711024eb7ae10fa4869"
 dependencies = [
  "displaydoc",
  "zerovec",
@@ -1873,9 +1891,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.16"
+version = "0.7.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14307c986784f72ef81c89db7d9e28d6ac26d16213b109ea501696195e6e3ce5"
+checksum = "2efa149fe76073d6e8fd97ef4f4eca7b67f599660115591483572e406e165594"
 dependencies = [
  "bytes",
  "futures-core",
@@ -2000,9 +2018,9 @@ checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.19"
+version = "1.0.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f63a545481291138910575129486daeaf8ac54aee4387fe7906919f7830c7d9d"
+checksum = "9312f7c4f6ff9069b165498234ce8be658059c6728633667c526e27dc2cf1df5"
 
 [[package]]
 name = "unicode-segmentation"
@@ -2054,9 +2072,9 @@ checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "version-compare"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "852e951cb7832cb45cb1169900d19760cfa39b82bc0ea9c0e5a14ae88411c98b"
+checksum = "03c2856837ef78f57382f06b2b8563a2f512f7185d732608fd9176cb3b8edf0e"
 
 [[package]]
 name = "version_check"
@@ -2064,6 +2082,12 @@ version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
+[[package]]
+name = "wake-on-lan"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ccf60b60ad7e5b1b37372c5134cbcab4db0706c231d212e0c643a077462bc8f"
+
 [[package]]
 name = "walkdir"
 version = "2.5.0"
@@ -2100,9 +2124,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.104"
+version = "0.2.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1da10c01ae9f1ae40cbfac0bac3b1e724b320abfcf52229f80b547c0d250e2d"
+checksum = "da95793dfc411fbbd93f5be7715b0578ec61fe87cb1a42b12eb625caa5c5ea60"
 dependencies = [
  "cfg-if",
  "once_cell",
@@ -2111,25 +2135,11 @@ dependencies = [
  "wasm-bindgen-shared",
 ]
 
-[[package]]
-name = "wasm-bindgen-backend"
-version = "0.2.104"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "671c9a5a66f49d8a47345ab942e2cb93c7d1d0339065d4f8139c486121b43b19"
-dependencies = [
- "bumpalo",
- "log",
- "proc-macro2",
- "quote",
- "syn",
- "wasm-bindgen-shared",
-]
-
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.54"
+version = "0.4.55"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e038d41e478cc73bae0ff9b36c60cff1c98b8f38f8d7e8061e79ee63608ac5c"
+checksum = "551f88106c6d5e7ccc7cd9a16f312dd3b5d36ea8b4954304657d5dfba115d4a0"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -2140,9 +2150,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.104"
+version = "0.2.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ca60477e4c59f5f2986c50191cd972e3a50d8a95603bc9434501cf156a9a119"
+checksum = "04264334509e04a7bf8690f2384ef5265f05143a4bff3889ab7a3269adab59c2"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -2150,31 +2160,31 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.104"
+version = "0.2.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f07d2f20d4da7b26400c9f4a0511e6e0345b040694e8a75bd41d578fa4421d7"
+checksum = "420bc339d9f322e562942d52e115d57e950d12d88983a14c79b86859ee6c7ebc"
 dependencies = [
+ "bumpalo",
  "proc-macro2",
  "quote",
  "syn",
- "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.104"
+version = "0.2.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bad67dc8b2a1a6e5448428adec4c3e84c43e561d8c9ee8a9e5aabeb193ec41d1"
+checksum = "76f218a38c84bcb33c25ec7059b07847d465ce0e0a76b995e134a45adcb6af76"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "web-sys"
-version = "0.3.81"
+version = "0.3.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9367c417a924a74cae129e6a2ae3b47fabb1f8995595ab474029da749a8be120"
+checksum = "3a1f95c0d03a47f4ae1f7a64643a6bb97465d9b740f0fa8f90ea33915c99a9a1"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -2528,17 +2538,16 @@ checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 
 [[package]]
 name = "writeable"
-version = "0.6.1"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea2f10b9bb0928dfb1b42b65e1f9e36f7f54dbdf08457afefb38afcdec4fa2bb"
+checksum = "9edde0db4769d2dc68579893f2306b26c6ecfbe0ef499b013d731b7b9247e0b9"
 
 [[package]]
 name = "yoke"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f41bb01b8226ef4bfd589436a297c53d118f65921786300e427be8d487695cc"
+checksum = "72d6e5c6afb84d73944e5cedb052c4680d5657337201555f9f2a16b7406d4954"
 dependencies = [
- "serde",
  "stable_deref_trait",
  "yoke-derive",
  "zerofrom",
@@ -2546,9 +2555,9 @@ dependencies = [
 
 [[package]]
 name = "yoke-derive"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38da3c9736e16c5d3c8c597a9aaa5d1fa565d0532ae05e27c24aa62fb32c0ab6"
+checksum = "b659052874eb698efe5b9e8cf382204678a0086ebf46982b79d6ca3182927e5d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2609,9 +2618,9 @@ dependencies = [
 
 [[package]]
 name = "zerotrie"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36f0bbd478583f79edad978b407914f61b2972f5af6fa089686016be8f9af595"
+checksum = "2a59c17a5562d507e4b54960e8569ebee33bee890c70aa3fe7b97e85a9fd7851"
 dependencies = [
  "displaydoc",
  "yoke",
@@ -2620,9 +2629,9 @@ dependencies = [
 
 [[package]]
 name = "zerovec"
-version = "0.11.4"
+version = "0.11.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7aa2bd55086f1ab526693ecbe444205da57e25f4489879da80635a46d90e73b"
+checksum = "6c28719294829477f525be0186d13efa9a3c602f7ec202ca9e353d310fb9a002"
 dependencies = [
  "yoke",
  "zerofrom",
@@ -2631,9 +2640,9 @@ dependencies = [
 
 [[package]]
 name = "zerovec-derive"
-version = "0.11.1"
+version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5b96237efa0c878c64bd89c436f661be4e46b2f3eff1ebb976f7ef2321d2f58f"
+checksum = "eadce39539ca5cb3985590102671f2567e659fca9666581ad3411d59207951f3"
 dependencies = [
  "proc-macro2",
  "quote",

README.md

@@ -1,88 +1,108 @@
 # CM Dashboard
 
-A real-time infrastructure monitoring system with intelligent status aggregation and email notifications, built with Rust and ZMQ.
+A high-performance Rust-based TUI dashboard for monitoring CMTEC infrastructure. Built with ZMQ-based metric collection and individual metrics architecture.
 
-## Current Implementation
+## Features
 
-This is a complete rewrite implementing an **individual metrics architecture** where:
+### Core Monitoring
+- **Real-time metrics**: CPU, RAM, Storage, and Service status
+- **Multi-host support**: Monitor multiple servers from single dashboard  
+- **Service management**: Start/stop services with intelligent status tracking
+- **NixOS integration**: System rebuild via SSH + tmux popup
+- **Backup monitoring**: Borgbackup status and scheduling
+- **Email notifications**: Intelligent batching prevents spam
 
-- **Agent** collects individual metrics (e.g., `cpu_load_1min`, `memory_usage_percent`) and calculates status
-- **Dashboard** subscribes to specific metrics and composes widgets
-- **Status Aggregation** provides intelligent email notifications with batching
-- **Persistent Cache** prevents false notifications on restart
+### User-Stopped Service Tracking
+Services stopped via the dashboard are intelligently tracked to prevent false alerts:
 
-## Dashboard Interface
+- **Smart status reporting**: User-stopped services show as Status::OK instead of Warning
+- **Persistent storage**: Tracking survives agent restarts via JSON storage
+- **Automatic management**: Flags cleared when services restarted via dashboard
+- **Maintenance friendly**: No false alerts during intentional service operations
+
+## Architecture
+
+### Individual Metrics Philosophy
+- **Agent**: Collects individual metrics, calculates status using thresholds
+- **Dashboard**: Subscribes to specific metrics, composes widgets from individual data
+- **ZMQ Communication**: Efficient real-time metric transmission
+- **Status Aggregation**: Host-level status calculated from all service metrics
+
+### Components
+
+```
+┌─────────────────┐    ZMQ     ┌─────────────────┐
+│                 │◄──────────►│                 │
+│   Agent         │  Metrics   │   Dashboard     │
+│   - Collectors  │            │   - TUI         │
+│   - Status      │            │   - Widgets     │
+│   - Tracking    │            │   - Commands    │
+│                 │            │                 │
+└─────────────────┘            └─────────────────┘
+         │                              │
+         ▼                              ▼
+┌─────────────────┐            ┌─────────────────┐
+│ JSON Storage    │            │ SSH + tmux      │
+│ - User-stopped  │            │ - Remote rebuild│
+│ - Cache         │            │ - Process       │
+│ - State         │            │   isolation     │
+└─────────────────┘            └─────────────────┘
+```
+
+### Service Control Flow
+
+1. **User Action**: Dashboard sends `UserStart`/`UserStop` commands
+2. **Agent Processing**: 
+   - Marks service as user-stopped (if stopping)
+   - Executes `systemctl start/stop service`
+   - Syncs state to global tracker
+3. **Status Calculation**: 
+   - Systemd collector checks user-stopped flag
+   - Reports Status::OK for user-stopped inactive services
+   - Normal Warning status for system failures
+
+## Interface
 
 ```
 cm-dashboard • ● cmbox ● srv01 ● srv02 ● steambox
 ┌system──────────────────────────────┐┌services─────────────────────────────────────────┐
-│CPU:                                ││Service:                  Status:  RAM:   Disk:  │
-│● Load: 0.10 0.52 0.88 • 400.0 MHz  ││● docker                  active   27M    496MB  │
-│RAM:                                ││● docker-registry         active   19M    496MB  │
-│● Used: 30% 2.3GB/7.6GB             ││● gitea                   active   579M   2.6GB  │
-│● tmp: 0.0% 0B/2.0GB                ││● gitea-runner-default    active   11M    2.6GB  │
-│Disk nvme0n1:                       ││● haasp-core              active   9M     1MB    │
-│● Health: PASSED                    ││● haasp-mqtt              active   3M     1MB    │
-│● Usage @root: 8.3% • 75.4/906.2 GB ││● haasp-webgrid           active   10M    1MB    │
-│● Usage @boot: 5.9% • 0.1/1.0 GB    ││● immich-server           active   240M   45.1GB │
-│                                    ││● mosquitto               active   1M     1MB    │
-│                                    ││● mysql                   active   38M    225MB  │
-│                                    ││● nginx                   active   28M    24MB   │
-│                                    ││  ├─ ● gitea.cmtec.se     51ms                   │
-│                                    ││  ├─ ● haasp.cmtec.se     43ms                   │
-│                                    ││  ├─ ● haasp.net          43ms                   │
-│                                    ││  ├─ ● pages.cmtec.se     45ms                   │
-└────────────────────────────────────┘│  ├─ ● photos.cmtec.se    41ms                   │
-┌backup──────────────────────────────┐│  ├─ ● unifi.cmtec.se     46ms                   │
-│Latest backup:                      ││  ├─ ● vault.cmtec.se     47ms                   │
-│● Status: OK                        ││  ├─ ● www.kryddorten.se  81ms                   │
-│Duration: 54s • Last: 4h ago        ││  ├─ ● www.mariehall2.se  86ms                   │
-│Disk usage: 48.2GB/915.8GB          ││● postgresql              active   112M   357MB  │
-│P/N: Samsung SSD 870 QVO 1TB        ││● redis-immich            active   8M     45.1GB │
-│S/N: S5RRNF0W800639Y                ││● sshd                    active   2M     0      │
-│● gitea 2 archives 2.7GB            ││● unifi                   active   594M   495MB  │
-│● immich 2 archives 45.0GB          ││● vaultwarden             active   12M    1MB    │
-│● kryddorten 2 archives 67.6MB      ││                                                 │
-│● mariehall2 2 archives 321.8MB     ││                                                 │
-│● nixosbox 2 archives 4.5MB         ││                                                 │
-│● unifi 2 archives 2.9MB            ││                                                 │
-│● vaultwarden 2 archives 305kB      ││                                                 │
+│NixOS:                              ││Service:                  Status:  RAM:   Disk:  │
+│Build: 25.05.20251004.3bcc93c       ││● docker                  active   27M    496MB  │
+│Agent: v0.1.43                      ││● gitea                   active   579M   2.6GB  │
+│Active users: cm, simon             ││● nginx                   active   28M    24MB   │
+│CPU:                                ││  ├─ ● gitea.cmtec.se     51ms                   │
+│● Load: 0.10 0.52 0.88 • 3000MHz    ││  ├─ ● photos.cmtec.se    41ms                   │
+│RAM:                                ││● postgresql              active   112M   357MB  │
+│● Usage: 33% 2.6GB/7.6GB            ││● redis-immich            user-stopped           │
+│● /tmp: 0% 0B/2.0GB                 ││● sshd                    active   2M     0      │
+│Storage:                            ││● unifi                   active   594M   495MB  │
+│● root (Single):                    ││                                                 │
+│ ├─ ● nvme0n1 W: 1%                 ││                                                 │
+│ └─ ● 18% 167.4GB/928.2GB           ││                                                 │
 └────────────────────────────────────┘└─────────────────────────────────────────────────┘
 ```
 
-**Navigation**: `←→` switch hosts, `r` refresh, `q` quit
+### Navigation
+- **Tab**: Switch between hosts
+- **↑↓ or j/k**: Navigate services
+- **s**: Start selected service (UserStart)  
+- **S**: Stop selected service (UserStop)
+- **J**: Show service logs (journalctl in tmux popup)
+- **L**: Show custom log files (tail -f custom paths in tmux popup)
+- **R**: Rebuild current host
+- **B**: Run backup on current host
+- **q**: Quit
 
-## Features
-
-- **Real-time monitoring** - Dashboard updates every 1-2 seconds
-- **Individual metric collection** - Granular data for flexible dashboard composition
-- **Intelligent status aggregation** - Host-level status calculated from all services
-- **Smart email notifications** - Batched, detailed alerts with service groupings
-- **Persistent state** - Prevents false notifications on restarts
-- **ZMQ communication** - Efficient agent-to-dashboard messaging
-- **Clean TUI** - Terminal-based dashboard with color-coded status indicators
-
-## Architecture
-
-### Core Components
-
-- **Agent** (`cm-dashboard-agent`) - Collects metrics and sends via ZMQ
-- **Dashboard** (`cm-dashboard`) - Real-time TUI display consuming metrics
-- **Shared** (`cm-dashboard-shared`) - Common types and protocol
-- **Status Aggregation** - Intelligent batching and notification management
-- **Persistent Cache** - Maintains state across restarts
-
-### Status Levels
-
-- **🟢 Ok** - Service running normally
-- **🔵 Pending** - Service starting/stopping/reloading
-- **🟡 Warning** - Service issues (high load, memory, disk usage)
-- **🔴 Critical** - Service failed or critical thresholds exceeded
-- **❓ Unknown** - Service state cannot be determined
+### Status Indicators
+- **Green ●**: Active service
+- **Yellow ◐**: Inactive service (system issue)
+- **Red ◯**: Failed service
+- **Blue arrows**: Service transitioning (↑ starting, ↓ stopping, ↻ restarting)
+- **"user-stopped"**: Service stopped via dashboard (Status::OK)
 
 ## Quick Start
 
-### Build
+### Building
 
 ```bash
 # With Nix (recommended)
@@ -93,21 +113,20 @@ sudo apt install libssl-dev pkg-config  # Ubuntu/Debian
 cargo build --workspace
 ```
 
-### Run
+### Running
 
 ```bash
-# Start agent (requires configuration file)
+# Start agent (requires configuration)
 ./target/debug/cm-dashboard-agent --config /etc/cm-dashboard/agent.toml
 
-# Start dashboard
-./target/debug/cm-dashboard --config /path/to/dashboard.toml
+# Start dashboard (inside tmux session)
+tmux
+./target/debug/cm-dashboard --config /etc/cm-dashboard/dashboard.toml
 ```
 
 ## Configuration
 
-### Agent Configuration (`agent.toml`)
-
-The agent requires a comprehensive TOML configuration file:
+### Agent Configuration
 
 ```toml
 collection_interval_seconds = 2
@@ -116,50 +135,27 @@ collection_interval_seconds = 2
 publisher_port = 6130
 command_port = 6131
 bind_address = "0.0.0.0"
-timeout_ms = 5000
-heartbeat_interval_ms = 30000
+transmission_interval_seconds = 2
 
 [collectors.cpu]
 enabled = true
 interval_seconds = 2
-load_warning_threshold = 9.0
+load_warning_threshold = 5.0
 load_critical_threshold = 10.0
-temperature_warning_threshold = 100.0
-temperature_critical_threshold = 110.0
 
 [collectors.memory]
 enabled = true
 interval_seconds = 2
 usage_warning_percent = 80.0
-usage_critical_percent = 95.0
-
-[collectors.disk]
-enabled = true
-interval_seconds = 300
-usage_warning_percent = 80.0
 usage_critical_percent = 90.0
 
-[[collectors.disk.filesystems]]
-name = "root"
-uuid = "4cade5ce-85a5-4a03-83c8-dfd1d3888d79"
-mount_point = "/"
-fs_type = "ext4"
-monitor = true
-
 [collectors.systemd]
 enabled = true
 interval_seconds = 10
-memory_warning_mb = 1000.0
-memory_critical_mb = 2000.0
-service_name_filters = [
-  "nginx*", "postgresql*", "redis*", "docker*", "sshd*", 
-  "gitea*", "immich*", "haasp*", "mosquitto*", "mysql*", 
-  "unifi*", "vaultwarden*"
-]
-excluded_services = [
-  "nginx-config-reload", "sshd-keygen", "systemd-", 
-  "getty@", "user@", "dbus-", "NetworkManager-"
-]
+service_name_filters = ["nginx*", "postgresql*", "docker*", "sshd*"]
+excluded_services = ["nginx-config-reload", "systemd-", "getty@"]
+nginx_latency_critical_ms = 1000.0
+http_timeout_seconds = 10
 
 [notifications]
 enabled = true
@@ -167,251 +163,203 @@ smtp_host = "localhost"
 smtp_port = 25
 from_email = "{hostname}@example.com"
 to_email = "admin@example.com"
-rate_limit_minutes = 0
-trigger_on_warnings = true
-trigger_on_failures = true
-recovery_requires_all_ok = true
-suppress_individual_recoveries = true
-
-[status_aggregation]
-enabled = true
-aggregation_method = "worst_case"
-notification_interval_seconds = 30
-
-[cache]
-persist_path = "/var/lib/cm-dashboard/cache.json"
+aggregation_interval_seconds = 30
 ```
 
-### Dashboard Configuration (`dashboard.toml`)
+### Dashboard Configuration
 
 ```toml
 [zmq]
-hosts = [
-  { name = "server1", address = "192.168.1.100", port = 6130 },
-  { name = "server2", address = "192.168.1.101", port = 6130 }
-]
-connection_timeout_ms = 5000
-reconnect_interval_ms = 10000
+subscriber_ports = [6130]
 
-[ui]
-refresh_interval_ms = 1000
-theme = "dark"
+[hosts]
+predefined_hosts = ["cmbox", "srv01", "srv02"]
+
+[ssh]
+rebuild_user = "cm"
+rebuild_alias = "nixos-rebuild-cmtec"
+backup_alias = "cm-backup-run"
 ```
 
-## Collectors
+## Technical Implementation
 
-The agent implements several specialized collectors:
+### Collectors
 
-### CPU Collector (`cpu.rs`)
+#### Systemd Collector
+- **Service Discovery**: Uses `systemctl list-unit-files` + `list-units --all`
+- **Status Calculation**: Checks user-stopped flag before assigning Warning status
+- **Memory Tracking**: Per-service memory usage via `systemctl show`
+- **Sub-services**: Nginx site latency, Docker containers
+- **User-stopped Integration**: `UserStoppedServiceTracker::is_service_user_stopped()`
 
-- Load average (1, 5, 15 minute)
-- CPU temperature monitoring
-- Real-time process monitoring (top CPU consumers)
-- Status calculation with configurable thresholds
+#### User-Stopped Service Tracker
+- **Storage**: `/var/lib/cm-dashboard/user-stopped-services.json`
+- **Thread Safety**: Global singleton with `Arc<Mutex<>>`
+- **Persistence**: Automatic save on state changes
+- **Global Access**: Static methods for collector integration
 
-### Memory Collector (`memory.rs`)
+#### Other Collectors
+- **CPU**: Load average, temperature, frequency monitoring
+- **Memory**: RAM/swap usage, tmpfs monitoring  
+- **Disk**: Filesystem usage, SMART health data
+- **NixOS**: Build version, active users, agent version
+- **Backup**: Borgbackup repository status and metrics
 
-- RAM usage (total, used, available)
-- Swap monitoring
-- Real-time process monitoring (top RAM consumers)
-- Memory pressure detection
+### ZMQ Protocol
 
-### Disk Collector (`disk.rs`)
+```rust
+// Metric Message
+#[derive(Serialize, Deserialize)]
+pub struct MetricMessage {
+    pub hostname: String,
+    pub timestamp: u64,
+    pub metrics: Vec<Metric>,
+}
 
-- Filesystem usage per mount point
-- SMART health monitoring
-- Temperature and wear tracking
-- Configurable filesystem monitoring
+// Service Commands
+pub enum AgentCommand {
+    ServiceControl {
+        service_name: String,
+        action: ServiceAction,
+    },
+    SystemRebuild { /* SSH config */ },
+    CollectNow,
+}
 
-### Systemd Collector (`systemd.rs`)
+pub enum ServiceAction {
+    Start,           // System-initiated
+    Stop,            // System-initiated  
+    UserStart,       // User via dashboard (clears user-stopped)
+    UserStop,        // User via dashboard (marks user-stopped)
+    Status,
+}
+```
 
-- Service status monitoring (`active`, `inactive`, `failed`)
-- Memory usage per service
-- Service filtering and exclusions
-- Handles transitional states (`Status::Pending`)
+### Maintenance Mode
 
-### Backup Collector (`backup.rs`)
+Suppress notifications during planned maintenance:
 
-- Reads TOML status files from backup systems
-- Archive age verification
-- Disk usage tracking
-- Repository health monitoring
+```bash
+# Enable maintenance mode
+touch /tmp/cm-maintenance
+
+# Perform maintenance
+systemctl stop service
+# ... work ...
+systemctl start service  
+
+# Disable maintenance mode
+rm /tmp/cm-maintenance
+```
 
 ## Email Notifications
 
 ### Intelligent Batching
+- **Real-time dashboard**: Immediate status updates
+- **Batched emails**: Aggregated every 30 seconds
+- **Smart grouping**: Services organized by severity
+- **Recovery suppression**: Reduces notification spam
 
-The system implements smart notification batching to prevent email spam:
-
-- **Real-time dashboard updates** - Status changes appear immediately
-- **Batched email notifications** - Aggregated every 30 seconds
-- **Detailed groupings** - Services organized by severity
-
-### Example Alert Email
-
+### Example Alert
 ```
-Subject: Status Alert: 2 critical, 1 warning, 15 started
+Subject: Status Alert: 1 critical, 2 warnings, 0 recoveries
 
 Status Summary (30s duration)
 Host Status: Ok → Warning
 
-🔴 CRITICAL ISSUES (2):
-  postgresql: Ok → Critical
-  nginx: Warning → Critical
+🔴 CRITICAL ISSUES (1):
+  postgresql: Ok → Critical (memory usage 95%)
 
-🟡 WARNINGS (1):
-  redis: Ok → Warning (memory usage 85%)
+🟡 WARNINGS (2):
+  nginx: Ok → Warning (high load 8.5)
+  redis: user-stopped → Warning (restarted by system)
 
 ✅ RECOVERIES (0):
 
-🟢 SERVICE STARTUPS (15):
-  docker: Unknown → Ok
-  sshd: Unknown → Ok
-  ...
-
 --
-CM Dashboard Agent
-Generated at 2025-10-21 19:42:42 CET
+CM Dashboard Agent v0.1.43
 ```
 
-## Individual Metrics Architecture
-
-The system follows a **metrics-first architecture**:
-
-### Agent Side
-
-```rust
-// Agent collects individual metrics
-vec![
-    Metric::new("cpu_load_1min".to_string(), MetricValue::Float(2.5), Status::Ok),
-    Metric::new("memory_usage_percent".to_string(), MetricValue::Float(78.5), Status::Warning),
-    Metric::new("service_nginx_status".to_string(), MetricValue::String("active".to_string()), Status::Ok),
-]
-```
-
-### Dashboard Side
-
-```rust
-// Widgets subscribe to specific metrics
-impl Widget for CpuWidget {
-    fn update_from_metrics(&mut self, metrics: &[&Metric]) {
-        for metric in metrics {
-            match metric.name.as_str() {
-                "cpu_load_1min" => self.load_1min = metric.value.as_f32(),
-                "cpu_load_5min" => self.load_5min = metric.value.as_f32(),
-                "cpu_temperature_celsius" => self.temperature = metric.value.as_f32(),
-                _ => {}
-            }
-        }
-    }
-}
-```
-
-## Persistent Cache
-
-The cache system prevents false notifications:
-
-- **Automatic saving** - Saves when service status changes
-- **Persistent storage** - Maintains state across agent restarts
-- **Simple design** - No complex TTL or cleanup logic
-- **Status preservation** - Prevents duplicate notifications
-
 ## Development
 
 ### Project Structure
-
 ```
 cm-dashboard/
-├── agent/                  # Metrics collection agent
+├── agent/                     # Metrics collection agent
 │   ├── src/
-│   │   ├── collectors/     # CPU, memory, disk, systemd, backup
-│   │   ├── status/         # Status aggregation and notifications
-│   │   ├── cache/          # Persistent metric caching
-│   │   ├── config/         # TOML configuration loading
-│   │   └── notifications/  # Email notification system
-├── dashboard/              # TUI dashboard application
+│   │   ├── collectors/        # CPU, memory, disk, systemd, backup, nixos
+│   │   ├── service_tracker.rs # User-stopped service tracking
+│   │   ├── status/            # Status aggregation and notifications
+│   │   ├── config/            # TOML configuration loading
+│   │   └── communication/     # ZMQ message handling
+├── dashboard/                 # TUI dashboard application  
 │   ├── src/
-│   │   ├── ui/widgets/     # CPU, memory, services, backup widgets
-│   │   ├── metrics/        # Metric storage and filtering
-│   │   └── communication/  # ZMQ metric consumption
-├── shared/                 # Shared types and utilities
+│   │   ├── ui/widgets/        # CPU, memory, services, backup, system
+│   │   ├── communication/     # ZMQ consumption and commands
+│   │   └── app.rs            # Main application loop
+├── shared/                    # Shared types and utilities
 │   └── src/
-│       ├── metrics.rs      # Metric, Status, and Value types
-│       ├── protocol.rs     # ZMQ message format
-│       └── cache.rs        # Cache configuration
-└── README.md              # This file
+│       ├── metrics.rs         # Metric, Status, StatusTracker types
+│       ├── protocol.rs        # ZMQ message format
+│       └── cache.rs           # Cache configuration
+└── CLAUDE.md                  # Development guidelines and rules
 ```
 
-### Building
-
+### Testing
 ```bash
-# Debug build
-cargo build --workspace
+# Build and test
+nix-shell -p openssl pkg-config --run "cargo build --workspace"
+nix-shell -p openssl pkg-config --run "cargo test --workspace"
 
-# Release build
-cargo build --workspace --release
-
-# Run tests
-cargo test --workspace
-
-# Check code formatting
-cargo fmt --all -- --check
-
-# Run clippy linter
+# Code quality
+cargo fmt --all
 cargo clippy --workspace -- -D warnings
 ```
 
-### Dependencies
+## Deployment
 
-- **tokio** - Async runtime
-- **zmq** - Message passing between agent and dashboard
-- **ratatui** - Terminal user interface
-- **serde** - Serialization for metrics and config
-- **anyhow/thiserror** - Error handling
-- **tracing** - Structured logging
-- **lettre** - SMTP email notifications
-- **clap** - Command-line argument parsing
-- **toml** - Configuration file parsing
+### Automated Binary Releases
+```bash
+# Create new release
+cd ~/projects/cm-dashboard
+git tag v0.1.X
+git push origin v0.1.X
+```
 
-## NixOS Integration
+This triggers automated:
+- Static binary compilation with `RUSTFLAGS="-C target-feature=+crt-static"`
+- GitHub-style release creation
+- Tarball upload to Gitea
 
-This project is designed for declarative deployment via NixOS:
-
-### Configuration Generation
-
-The NixOS module automatically generates the agent configuration:
+### NixOS Integration
+Update `~/projects/nixosbox/hosts/services/cm-dashboard.nix`:
 
 ```nix
-# hosts/common/cm-dashboard.nix
-services.cm-dashboard-agent = {
-  enable = true;
-  port = 6130;
+version = "v0.1.43";
+src = pkgs.fetchurl {
+  url = "https://gitea.cmtec.se/cm/cm-dashboard/releases/download/${version}/cm-dashboard-linux-x86_64.tar.gz";
+  sha256 = "sha256-HASH";
 };
 ```
 
-### Deployment
-
+Get hash via:
 ```bash
-# Update NixOS configuration
-git add hosts/common/cm-dashboard.nix
-git commit -m "Update cm-dashboard configuration"
-git push
-
-# Rebuild system (user-performed)
-sudo nixos-rebuild switch --flake .
+cd ~/projects/nixosbox
+nix-build --no-out-link -E 'with import <nixpkgs> {}; fetchurl {
+  url = "URL_HERE";
+  sha256 = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
+}' 2>&1 | grep "got:"
 ```
 
 ## Monitoring Intervals
 
-- **CPU/Memory**: 2 seconds (real-time monitoring)
-- **Disk usage**: 300 seconds (5 minutes)
-- **Systemd services**: 10 seconds
-- **SMART health**: 600 seconds (10 minutes)
-- **Backup status**: 60 seconds (1 minute)
-- **Email notifications**: 30 seconds (batched)
-- **Dashboard updates**: 1 second (real-time display)
+- **Metrics Collection**: 2 seconds (CPU, memory, services)
+- **Metric Transmission**: 2 seconds (ZMQ publish)
+- **Dashboard Updates**: 1 second (UI refresh)
+- **Email Notifications**: 30 seconds (batched)
+- **Disk Monitoring**: 300 seconds (5 minutes)
+- **Service Discovery**: 300 seconds (5 minutes cache)
 
 ## License
 
-MIT License - see LICENSE file for details
-
+MIT License - see LICENSE file for details.

TODO.md

@@ -1,63 +0,0 @@
-# TODO
-
-## Systemd filtering (agent)
-
-- remove user systemd collection
-- reduce number of systemctl call
-- Cahnge so only services in include list are detected
-- Filter on exact name
-- Add support for "\*" in filtering
-
-## System panel (agent/dashboard)
-
-use following layout:
-'''
-NixOS:
-Build: xxxxxx
-Agen: xxxxxx
-CPU:
-● Load: 0.02 0.31 0.86
-└─ Freq: 3000MHz
-RAM:
-● Usage: 33% 2.6GB/7.6GB  
- └─ ● /tmp: 0% 0B/2.0GB
-Storage:
-● /:  
- ├─ ● nvme0n1 T: 40C • W: 4%  
- └─ ● 8% 75.0GB/906.2GB
-'''
-
-- Add support to show login/active users
-- Add support to show timestamp/version for latest nixos rebuild
-
-## Backup panel (dashboard)
-
-use following layout:
-'''
-Latest backup:  
-● <timestamp>
-└─ Duration: 1.3m
-Disk:
-● Samsung SSD 870 QVO 1TB  
- ├─ S/N: S5RRNF0W800639Y
-└─ Usage: 50.5GB/915.8GB
-Repos:
-● gitea (4) 5.1GB  
-● immich (4) 45.0GB  
-● kryddorten (4) 67.8MB  
-● mariehall2 (4) 322.7MB
-● nixosbox (4) 5.5MB  
-● unifi (4) 5.7MB  
-● vaultwarden (4) 508kB
-'''
-
-## Keyboard navigation and scrolling (dashboard)
-
-- Add keyboard navigation between panels "Shift-Tab"
-- Add lower statusbar with dynamic updated shortcuts when switchng between panels
-
-## Remote execution (agent/dashboard)
-
-- Add support for send command via dashboard to agent to do nixos rebuid
-- Add support for navigating services in dashboard and trigger start/stop/restart
-- Add support for trigger backup

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.42"
+version = "0.1.142"
 edition = "2021"
 
 [dependencies]

agent/src/agent.rs

@@ -4,20 +4,38 @@ use std::time::Duration;
 use tokio::time::interval;
 use tracing::{debug, error, info};
 
-use crate::communication::{AgentCommand, ServiceAction, ZmqHandler};
+use crate::communication::{AgentCommand, ZmqHandler};
 use crate::config::AgentConfig;
-use crate::metrics::MetricCollectionManager;
+use crate::collectors::{
+    Collector,
+    backup::BackupCollector,
+    cpu::CpuCollector,
+    disk::DiskCollector,
+    memory::MemoryCollector,
+    nixos::NixOSCollector,
+    systemd::SystemdCollector,
+};
 use crate::notifications::NotificationManager;
-use crate::status::HostStatusManager;
-use cm_dashboard_shared::{Metric, MetricMessage, MetricValue, Status};
+use crate::service_tracker::UserStoppedServiceTracker;
+use cm_dashboard_shared::AgentData;
 
 pub struct Agent {
     hostname: String,
     config: AgentConfig,
     zmq_handler: ZmqHandler,
-    metric_manager: MetricCollectionManager,
+    collectors: Vec<Box<dyn Collector>>,
     notification_manager: NotificationManager,
-    host_status_manager: HostStatusManager,
+    service_tracker: UserStoppedServiceTracker,
+    previous_status: Option<SystemStatus>,
+}
+
+/// Track system component status for change detection
+#[derive(Debug, Clone)]
+struct SystemStatus {
+    cpu_load_status: cm_dashboard_shared::Status,
+    cpu_temperature_status: cm_dashboard_shared::Status,
+    memory_usage_status: cm_dashboard_shared::Status,
+    // Add more as needed
 }
 
 impl Agent {
@@ -38,64 +56,85 @@ impl Agent {
             config.zmq.publisher_port
         );
 
-        // Initialize metric collection manager with cache config
-        let metric_manager = MetricCollectionManager::new(&config.collectors, &config).await?;
-        info!("Metric collection manager initialized");
+        // Initialize collectors
+        let mut collectors: Vec<Box<dyn Collector>> = Vec::new();
+        
+        // Add enabled collectors
+        if config.collectors.cpu.enabled {
+            collectors.push(Box::new(CpuCollector::new(config.collectors.cpu.clone())));
+        }
+        
+        if config.collectors.memory.enabled {
+            collectors.push(Box::new(MemoryCollector::new(config.collectors.memory.clone())));
+        }
+        
+        if config.collectors.disk.enabled {
+            collectors.push(Box::new(DiskCollector::new(config.collectors.disk.clone())));
+        }
+        
+        if config.collectors.systemd.enabled {
+            collectors.push(Box::new(SystemdCollector::new(config.collectors.systemd.clone())));
+        }
+        
+        if config.collectors.backup.enabled {
+            collectors.push(Box::new(BackupCollector::new()));
+        }
+        
+        if config.collectors.nixos.enabled {
+            collectors.push(Box::new(NixOSCollector::new(config.collectors.nixos.clone())));
+        }
+
+        info!("Initialized {} collectors", collectors.len());
 
         // Initialize notification manager
         let notification_manager = NotificationManager::new(&config.notifications, &hostname)?;
         info!("Notification manager initialized");
 
-        // Initialize host status manager
-        let host_status_manager = HostStatusManager::new(config.status_aggregation.clone());
-        info!("Host status manager initialized");
+        // Initialize service tracker
+        let service_tracker = UserStoppedServiceTracker::new();
+        info!("Service tracker initialized");
 
         Ok(Self {
             hostname,
             config,
             zmq_handler,
-            metric_manager,
+            collectors,
             notification_manager,
-            host_status_manager,
+            service_tracker,
+            previous_status: None,
         })
     }
 
+    /// Main agent loop with structured data collection
     pub async fn run(&mut self, mut shutdown_rx: tokio::sync::oneshot::Receiver<()>) -> Result<()> {
-        info!("Starting agent main loop with separated collection and transmission");
+        info!("Starting agent main loop");
 
-        // CRITICAL: Collect ALL data immediately at startup before entering the loop
-        info!("Performing initial FORCE collection of all metrics at startup");
-        if let Err(e) = self.collect_all_metrics_force().await {
-            error!("Failed to collect initial metrics: {}", e);
-        } else {
-            info!("Initial metric collection completed - all data cached and ready");
+        // Initial collection
+        if let Err(e) = self.collect_and_broadcast().await {
+            error!("Initial metric collection failed: {}", e);
         }
 
-        // Separate intervals for collection, transmission, and email notifications
-        let mut collection_interval =
-            interval(Duration::from_secs(self.config.collection_interval_seconds));
-        let mut transmission_interval = interval(Duration::from_secs(self.config.zmq.transmission_interval_seconds));
-        let mut notification_interval = interval(Duration::from_secs(self.config.notifications.aggregation_interval_seconds));
+        // Set up intervals
+        let mut transmission_interval = interval(Duration::from_secs(
+            self.config.collection_interval_seconds,
+        ));
+        let mut notification_interval = interval(Duration::from_secs(30)); // Check notifications every 30s
+
+        // Skip initial ticks to avoid immediate execution
+        transmission_interval.tick().await;
+        notification_interval.tick().await;
 
         loop {
             tokio::select! {
-                _ = collection_interval.tick() => {
-                    // Only collect and cache metrics, no ZMQ transmission
-                    if let Err(e) = self.collect_metrics_only().await {
-                        error!("Failed to collect metrics: {}", e);
-                    }
-                }
                 _ = transmission_interval.tick() => {
-                    // Send all metrics via ZMQ (dashboard updates only)
-                    if let Err(e) = self.broadcast_all_metrics().await {
-                        error!("Failed to broadcast metrics: {}", e);
+                    if let Err(e) = self.collect_and_broadcast().await {
+                        error!("Failed to collect and broadcast metrics: {}", e);
                     }
                 }
                 _ = notification_interval.tick() => {
-                    // Process batched email notifications (separate from dashboard updates)
-                    if let Err(e) = self.host_status_manager.process_pending_notifications(&mut self.notification_manager).await {
-                        error!("Failed to process pending notifications: {}", e);
-                    }
+                    // Process any pending notifications
+                    // NOTE: With structured data, we might need to implement status tracking differently
+                    // For now, we skip this until status evaluation is migrated
                 }
                 // Handle incoming commands (check periodically)
                 _ = tokio::time::sleep(Duration::from_millis(100)) => {
@@ -114,200 +153,144 @@ impl Agent {
         Ok(())
     }
 
-    async fn collect_all_metrics_force(&mut self) -> Result<()> {
-        info!("Starting FORCE metric collection for startup");
+    /// Collect structured data from all collectors and broadcast via ZMQ
+    async fn collect_and_broadcast(&mut self) -> Result<()> {
+        debug!("Starting structured data collection");
 
-        // Force collect all metrics from all collectors immediately
-        let metrics = self.metric_manager.collect_all_metrics_force().await?;
+        // Initialize empty AgentData
+        let mut agent_data = AgentData::new(self.hostname.clone(), env!("CARGO_PKG_VERSION").to_string());
 
-        if metrics.is_empty() {
-            error!("No metrics collected during force collection!");
-            return Ok(());
-        }
-
-        info!("Force collected and cached {} metrics", metrics.len());
-
-        // Process metrics through status manager (collect status data at startup)
-        let _status_changed = self.process_metrics(&metrics).await;
-
-        Ok(())
-    }
-
-    async fn collect_metrics_only(&mut self) -> Result<()> {
-        debug!("Starting metric collection cycle (cache only)");
-
-        // Collect all metrics from all collectors and cache them
-        let metrics = self.metric_manager.collect_all_metrics().await?;
-
-        if metrics.is_empty() {
-            debug!("No metrics collected this cycle");
-            return Ok(());
-        }
-
-        debug!("Collected and cached {} metrics", metrics.len());
-
-        // Process metrics through status manager and trigger immediate transmission if status changed
-        let status_changed = self.process_metrics(&metrics).await;
-        
-        if status_changed {
-            info!("Status change detected - triggering immediate metric transmission");
-            if let Err(e) = self.broadcast_all_metrics().await {
-                error!("Failed to broadcast metrics after status change: {}", e);
+        // Collect data from all collectors
+        for collector in &self.collectors {
+            if let Err(e) = collector.collect_structured(&mut agent_data).await {
+                error!("Collector failed: {}", e);
+                // Continue with other collectors even if one fails
             }
         }
 
+        // Check for status changes and send notifications
+        if let Err(e) = self.check_status_changes_and_notify(&agent_data).await {
+            error!("Failed to check status changes: {}", e);
+        }
+
+        // Broadcast the structured data via ZMQ
+        if let Err(e) = self.zmq_handler.publish_agent_data(&agent_data).await {
+            error!("Failed to broadcast agent data: {}", e);
+        } else {
+            debug!("Successfully broadcast structured agent data");
+        }
+
         Ok(())
     }
 
-    async fn broadcast_all_metrics(&mut self) -> Result<()> {
-        debug!("Broadcasting cached metrics via ZMQ");
-
-        // Get cached metrics (no fresh collection)
-        let mut metrics = self.metric_manager.get_cached_metrics();
-
-        // Add the host status summary metric from status manager
-        let host_status_metric = self.host_status_manager.get_host_status_metric();
-        metrics.push(host_status_metric);
-
-        // Add agent version metric for cross-host version comparison
-        let version_metric = self.get_agent_version_metric();
-        metrics.push(version_metric);
-
-        if metrics.is_empty() {
-            debug!("No metrics to broadcast");
-            return Ok(());
-        }
-
-        debug!("Broadcasting {} cached metrics (including host status summary)", metrics.len());
-
-        // Create and send message with all current data
-        let message = MetricMessage::new(self.hostname.clone(), metrics);
-        self.zmq_handler.publish_metrics(&message).await?;
-
-        debug!("Metrics broadcasted successfully");
-        Ok(())
-    }
-
-    async fn process_metrics(&mut self, metrics: &[Metric]) -> bool {
-        let mut status_changed = false;
-        for metric in metrics {
-            if self.host_status_manager.process_metric(metric, &mut self.notification_manager).await {
-                status_changed = true;
-            }
-        }
-        status_changed
-    }
-
-    /// Create agent version metric for cross-host version comparison
-    fn get_agent_version_metric(&self) -> Metric {
-        // Get version from executable path (same logic as main.rs get_version)
-        let version = self.get_agent_version();
-        
-        Metric::new(
-            "agent_version".to_string(),
-            MetricValue::String(version),
-            Status::Ok,
-        )
-    }
-
-    /// Get agent version from Cargo package version
-    fn get_agent_version(&self) -> String {
-        // Use the version from Cargo.toml (e.g., "0.1.11")
-        format!("v{}", env!("CARGO_PKG_VERSION"))
-    }
-
-    async fn handle_commands(&mut self) -> Result<()> {
-        // Try to receive commands (non-blocking)
-        match self.zmq_handler.try_receive_command() {
-            Ok(Some(command)) => {
-                info!("Received command: {:?}", command);
-                self.process_command(command).await?;
-            }
-            Ok(None) => {
-                // No command available - this is normal
-            }
-            Err(e) => {
-                error!("Error receiving command: {}", e);
-            }
-        }
-        Ok(())
-    }
-
-    async fn process_command(&mut self, command: AgentCommand) -> Result<()> {
-        match command {
-            AgentCommand::CollectNow => {
-                info!("Processing CollectNow command");
-                if let Err(e) = self.collect_metrics_only().await {
-                    error!("Failed to collect metrics on command: {}", e);
-                }
-            }
-            AgentCommand::SetInterval { seconds } => {
-                info!("Processing SetInterval command: {} seconds", seconds);
-                // Note: This would require modifying the interval, which is complex
-                // For now, just log the request
-                info!("Interval change requested but not implemented yet");
-            }
-            AgentCommand::ToggleCollector { name, enabled } => {
-                info!(
-                    "Processing ToggleCollector command: {} -> {}",
-                    name, enabled
-                );
-                // Note: This would require dynamic collector management
-                info!("Collector toggle requested but not implemented yet");
-            }
-            AgentCommand::Ping => {
-                info!("Processing Ping command - agent is alive");
-                // Could send a response back via ZMQ if needed
-            }
-            AgentCommand::ServiceControl { service_name, action } => {
-                info!("Processing ServiceControl command: {} {:?}", service_name, action);
-                if let Err(e) = self.handle_service_control(&service_name, &action).await {
-                    error!("Failed to execute service control: {}", e);
-                }
-            }
-        }
-        Ok(())
-    }
-
-    /// Handle systemd service control commands
-    async fn handle_service_control(&mut self, service_name: &str, action: &ServiceAction) -> Result<()> {
-        let action_str = match action {
-            ServiceAction::Start => "start",
-            ServiceAction::Stop => "stop", 
-            ServiceAction::Status => "status",
+    /// Check for status changes and send notifications
+    async fn check_status_changes_and_notify(&mut self, agent_data: &AgentData) -> Result<()> {
+        // Extract current status
+        let current_status = SystemStatus {
+            cpu_load_status: agent_data.system.cpu.load_status.clone(),
+            cpu_temperature_status: agent_data.system.cpu.temperature_status.clone(),
+            memory_usage_status: agent_data.system.memory.usage_status.clone(),
         };
 
-        info!("Executing systemctl {} {}", action_str, service_name);
+        // Check for status changes
+        if let Some(previous) = self.previous_status.clone() {
+            self.check_and_notify_status_change(
+                "CPU Load",
+                &previous.cpu_load_status,
+                &current_status.cpu_load_status,
+                format!("CPU load: {:.1}", agent_data.system.cpu.load_1min)
+            ).await?;
 
-        let output = tokio::process::Command::new("sudo")
-            .arg("systemctl")
-            .arg(action_str)
-            .arg(service_name)
-            .output()
-            .await?;
+            self.check_and_notify_status_change(
+                "CPU Temperature", 
+                &previous.cpu_temperature_status,
+                &current_status.cpu_temperature_status,
+                format!("CPU temperature: {}°C", 
+                    agent_data.system.cpu.temperature_celsius.unwrap_or(0.0) as i32)
+            ).await?;
 
-        if output.status.success() {
-            info!("Service {} {} completed successfully", service_name, action_str);
-            if !output.stdout.is_empty() {
-                debug!("stdout: {}", String::from_utf8_lossy(&output.stdout));
-            }
-        } else {
-            let stderr = String::from_utf8_lossy(&output.stderr);
-            error!("Service {} {} failed: {}", service_name, action_str, stderr);
-            return Err(anyhow::anyhow!("systemctl {} {} failed: {}", action_str, service_name, stderr));
+            self.check_and_notify_status_change(
+                "Memory Usage",
+                &previous.memory_usage_status, 
+                &current_status.memory_usage_status,
+                format!("Memory usage: {:.1}%", agent_data.system.memory.usage_percent)
+            ).await?;
         }
 
-        // Force refresh metrics after service control to update service status
-        if matches!(action, ServiceAction::Start | ServiceAction::Stop) {
-            info!("Triggering immediate metric refresh after service control");
-            if let Err(e) = self.collect_metrics_only().await {
-                error!("Failed to refresh metrics after service control: {}", e);
-            } else {
-                info!("Service status refreshed immediately after {} {}", action_str, service_name);
+        // Store current status for next comparison
+        self.previous_status = Some(current_status);
+        Ok(())
+    }
+
+    /// Check individual status change and send notification if degraded
+    async fn check_and_notify_status_change(
+        &mut self,
+        component: &str,
+        previous: &cm_dashboard_shared::Status,
+        current: &cm_dashboard_shared::Status,
+        details: String
+    ) -> Result<()> {
+        use cm_dashboard_shared::Status;
+
+        // Only notify on status degradation (OK → Warning/Critical, Warning → Critical)
+        let should_notify = match (previous, current) {
+            (Status::Ok, Status::Warning) => true,
+            (Status::Ok, Status::Critical) => true,
+            (Status::Warning, Status::Critical) => true,
+            _ => false,
+        };
+
+        if should_notify {
+            let subject = format!("{} {} Alert", self.hostname, component);
+            let body = format!(
+                "Alert: {} status changed from {:?} to {:?}\n\nDetails: {}\n\nTime: {}",
+                component,
+                previous,
+                current, 
+                details,
+                chrono::Utc::now().format("%Y-%m-%d %H:%M:%S UTC")
+            );
+
+            info!("Sending notification: {} - {:?} → {:?}", component, previous, current);
+            
+            if let Err(e) = self.notification_manager.send_direct_email(&subject, &body).await {
+                error!("Failed to send notification for {}: {}", component, e);
             }
         }
 
         Ok(())
     }
 
+    /// Handle incoming commands from dashboard
+    async fn handle_commands(&mut self) -> Result<()> {
+        // Try to receive a command (non-blocking)
+        if let Ok(Some(command)) = self.zmq_handler.try_receive_command() {
+            info!("Received command: {:?}", command);
+
+            match command {
+                AgentCommand::CollectNow => {
+                    info!("Received immediate collection request");
+                    if let Err(e) = self.collect_and_broadcast().await {
+                        error!("Failed to collect on demand: {}", e);
+                    }
+                }
+                AgentCommand::SetInterval { seconds } => {
+                    info!("Received interval change request: {}s", seconds);
+                    // Note: This would require more complex handling to update the interval
+                    // For now, just acknowledge
+                }
+                AgentCommand::ToggleCollector { name, enabled } => {
+                    info!("Received collector toggle request: {} -> {}", name, enabled);
+                    // Note: This would require more complex handling to enable/disable collectors
+                    // For now, just acknowledge
+                }
+                AgentCommand::Ping => {
+                    info!("Received ping command");
+                    // Maybe send back a pong or status
+                }
+            }
+        }
+        Ok(())
+    }
+
 }

agent/src/collectors/backup.rs

@@ -1,435 +1,88 @@
 use async_trait::async_trait;
-use chrono::Utc;
-use cm_dashboard_shared::{Metric, MetricValue, Status, StatusTracker};
+use cm_dashboard_shared::{AgentData, BackupData};
 use serde::{Deserialize, Serialize};
-use std::collections::HashMap;
-use tokio::fs;
+use std::fs;
+use std::path::Path;
+use tracing::debug;
 
 use super::{Collector, CollectorError};
-use tracing::error;
 
-/// Backup collector that reads TOML status files for borgbackup metrics
-#[derive(Debug, Clone)]
+/// Backup collector that reads backup status from JSON files with structured data output
 pub struct BackupCollector {
-    pub backup_status_file: String,
-    pub max_age_hours: u64,
+    /// Path to backup status file
+    status_file_path: String,
 }
 
 impl BackupCollector {
-    pub fn new(backup_status_file: Option<String>, max_age_hours: u64) -> Self {
+    pub fn new() -> Self {
         Self {
-            backup_status_file: backup_status_file
-                .unwrap_or_else(|| "/var/lib/backup/backup-status.toml".to_string()),
-            max_age_hours,
+            status_file_path: "/var/lib/backup/status.json".to_string(),
         }
     }
 
-    async fn read_backup_status(&self) -> Result<Option<BackupStatusToml>, CollectorError> {
-        // Check if backup status file exists
-        if !std::path::Path::new(&self.backup_status_file).exists() {
-            return Ok(None); // File doesn't exist, but this is not an error
+    /// Read backup status from JSON file
+    async fn read_backup_status(&self) -> Result<Option<BackupStatus>, CollectorError> {
+        if !Path::new(&self.status_file_path).exists() {
+            debug!("Backup status file not found: {}", self.status_file_path);
+            return Ok(None);
         }
 
-        let content = fs::read_to_string(&self.backup_status_file)
-            .await
+        let content = fs::read_to_string(&self.status_file_path)
             .map_err(|e| CollectorError::SystemRead {
-                path: self.backup_status_file.clone(),
+                path: self.status_file_path.clone(),
                 error: e.to_string(),
             })?;
 
-        let backup_status = toml::from_str(&content).map_err(|e| CollectorError::Parse {
-            value: "backup status TOML".to_string(),
-            error: e.to_string(),
-        })?;
+        let status: BackupStatus = serde_json::from_str(&content)
+            .map_err(|e| CollectorError::Parse {
+                value: content.clone(),
+                error: format!("Failed to parse backup status JSON: {}", e),
+            })?;
 
-        Ok(Some(backup_status))
+        Ok(Some(status))
     }
 
-    fn calculate_backup_status(&self, backup_status: &BackupStatusToml) -> Status {
-        // Parse the start time to check age - handle both RFC3339 and local timestamp formats
-        let start_time = match chrono::DateTime::parse_from_rfc3339(&backup_status.start_time) {
-            Ok(dt) => dt.with_timezone(&Utc),
-            Err(_) => {
-                // Try parsing as naive datetime and assume UTC
-                match chrono::NaiveDateTime::parse_from_str(
-                    &backup_status.start_time,
-                    "%Y-%m-%dT%H:%M:%S%.f",
-                ) {
-                    Ok(naive_dt) => naive_dt.and_utc(),
-                    Err(_) => {
-                        error!(
-                            "Failed to parse backup timestamp: {}",
-                            backup_status.start_time
-                        );
-                        return Status::Unknown;
-                    }
-                }
-            }
-        };
+    /// Convert BackupStatus to BackupData and populate AgentData
+    async fn populate_backup_data(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        if let Some(backup_status) = self.read_backup_status().await? {
+            let backup_data = BackupData {
+                status: backup_status.status,
+                last_run: Some(backup_status.last_run),
+                next_scheduled: Some(backup_status.next_scheduled),
+                total_size_gb: Some(backup_status.total_size_gb),
+                repository_health: Some(backup_status.repository_health),
+            };
 
-        let hours_since_backup = Utc::now().signed_duration_since(start_time).num_hours();
-
-        // Check overall backup status
-        match backup_status.status.as_str() {
-            "success" => {
-                if hours_since_backup > self.max_age_hours as i64 {
-                    Status::Warning // Backup too old
-                } else {
-                    Status::Ok
-                }
-            }
-            "failed" => Status::Critical,
-            "running" => Status::Ok, // Currently running is OK
-            _ => Status::Unknown,
+            agent_data.backup = backup_data;
+        } else {
+            // No backup status available - set default values
+            agent_data.backup = BackupData {
+                status: "unavailable".to_string(),
+                last_run: None,
+                next_scheduled: None,
+                total_size_gb: None,
+                repository_health: None,
+            };
         }
-    }
 
-    fn calculate_service_status(&self, service: &ServiceStatus) -> Status {
-        match service.status.as_str() {
-            "completed" => {
-                if service.exit_code == 0 {
-                    Status::Ok
-                } else {
-                    Status::Critical
-                }
-            }
-            "failed" => Status::Critical,
-            "disabled" => Status::Warning, // Service intentionally disabled
-            "running" => Status::Ok,
-            _ => Status::Unknown,
-        }
-    }
-
-    fn bytes_to_gb(bytes: u64) -> f32 {
-        bytes as f32 / (1024.0 * 1024.0 * 1024.0)
+        Ok(())
     }
 }
 
 #[async_trait]
 impl Collector for BackupCollector {
-
-    async fn collect(&self, _status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
-        let backup_status_option = self.read_backup_status().await?;
-        let mut metrics = Vec::new();
-        let timestamp = chrono::Utc::now().timestamp() as u64;
-
-        // If no backup status file exists, return minimal metrics indicating no backup system
-        let backup_status = match backup_status_option {
-            Some(status) => status,
-            None => {
-                // No backup system configured - return minimal "unknown" metrics
-                metrics.push(Metric {
-                    name: "backup_overall_status".to_string(),
-                    value: MetricValue::String("no_backup_system".to_string()),
-                    status: Status::Unknown,
-                    timestamp,
-                    description: Some("No backup system configured (no status file found)".to_string()),
-                    unit: None,
-                });
-                return Ok(metrics);
-            }
-        };
-
-        // Overall backup status
-        let overall_status = self.calculate_backup_status(&backup_status);
-        metrics.push(Metric {
-            name: "backup_overall_status".to_string(),
-            value: MetricValue::String(match overall_status {
-                Status::Ok => "ok".to_string(),
-                Status::Pending => "pending".to_string(),
-                Status::Warning => "warning".to_string(),
-                Status::Critical => "critical".to_string(),
-                Status::Unknown => "unknown".to_string(),
-            }),
-            status: overall_status,
-            timestamp,
-            description: Some(format!(
-                "Backup: {} at {}",
-                backup_status.status, backup_status.start_time
-            )),
-            unit: None,
-        });
-
-        // Backup duration
-        metrics.push(Metric {
-            name: "backup_duration_seconds".to_string(),
-            value: MetricValue::Integer(backup_status.duration_seconds),
-            status: Status::Ok,
-            timestamp,
-            description: Some("Duration of last backup run".to_string()),
-            unit: Some("seconds".to_string()),
-        });
-
-        // Last backup timestamp - use last_updated (when backup finished) instead of start_time
-        let last_updated_dt_result =
-            chrono::DateTime::parse_from_rfc3339(&backup_status.last_updated)
-                .map(|dt| dt.with_timezone(&Utc))
-                .or_else(|_| {
-                    // Try parsing as naive datetime and assume UTC
-                    chrono::NaiveDateTime::parse_from_str(
-                        &backup_status.last_updated,
-                        "%Y-%m-%dT%H:%M:%S%.f",
-                    )
-                    .map(|naive_dt| naive_dt.and_utc())
-                });
-
-        if let Ok(last_updated_dt) = last_updated_dt_result {
-            metrics.push(Metric {
-                name: "backup_last_run_timestamp".to_string(),
-                value: MetricValue::Integer(last_updated_dt.timestamp()),
-                status: Status::Ok,
-                timestamp,
-                description: Some("Timestamp of last backup completion".to_string()),
-                unit: Some("unix_timestamp".to_string()),
-            });
-        } else {
-            error!(
-                "Failed to parse backup timestamp for last_run_timestamp: {}",
-                backup_status.last_updated
-            );
-        }
-
-        // Individual service metrics
-        for (service_name, service) in &backup_status.services {
-            let service_status = self.calculate_service_status(service);
-
-            // Service status
-            metrics.push(Metric {
-                name: format!("backup_service_{}_status", service_name),
-                value: MetricValue::String(match service_status {
-                    Status::Ok => "ok".to_string(),
-                    Status::Pending => "pending".to_string(),
-                    Status::Warning => "warning".to_string(),
-                    Status::Critical => "critical".to_string(),
-                    Status::Unknown => "unknown".to_string(),
-                }),
-                status: service_status,
-                timestamp,
-                description: Some(format!(
-                    "Backup service {} status: {}",
-                    service_name, service.status
-                )),
-                unit: None,
-            });
-
-            // Service exit code
-            metrics.push(Metric {
-                name: format!("backup_service_{}_exit_code", service_name),
-                value: MetricValue::Integer(service.exit_code),
-                status: if service.exit_code == 0 {
-                    Status::Ok
-                } else {
-                    Status::Critical
-                },
-                timestamp,
-                description: Some(format!("Exit code for backup service {}", service_name)),
-                unit: None,
-            });
-
-            // Repository archive count
-            metrics.push(Metric {
-                name: format!("backup_service_{}_archive_count", service_name),
-                value: MetricValue::Integer(service.archive_count),
-                status: Status::Ok,
-                timestamp,
-                description: Some(format!("Number of archives in {} repository", service_name)),
-                unit: Some("archives".to_string()),
-            });
-
-            // Repository size in GB
-            let repo_size_gb = Self::bytes_to_gb(service.repo_size_bytes);
-            metrics.push(Metric {
-                name: format!("backup_service_{}_repo_size_gb", service_name),
-                value: MetricValue::Float(repo_size_gb),
-                status: Status::Ok,
-                timestamp,
-                description: Some(format!("Repository size for {} in GB", service_name)),
-                unit: Some("GB".to_string()),
-            });
-
-            // Repository path for reference
-            metrics.push(Metric {
-                name: format!("backup_service_{}_repo_path", service_name),
-                value: MetricValue::String(service.repo_path.clone()),
-                status: Status::Ok,
-                timestamp,
-                description: Some(format!("Repository path for {}", service_name)),
-                unit: None,
-            });
-        }
-
-        // Total number of services
-        metrics.push(Metric {
-            name: "backup_total_services".to_string(),
-            value: MetricValue::Integer(backup_status.services.len() as i64),
-            status: Status::Ok,
-            timestamp,
-            description: Some("Total number of backup services".to_string()),
-            unit: Some("services".to_string()),
-        });
-
-        // Calculate total repository size
-        let total_size_bytes: u64 = backup_status
-            .services
-            .values()
-            .map(|s| s.repo_size_bytes)
-            .sum();
-        let total_size_gb = Self::bytes_to_gb(total_size_bytes);
-        metrics.push(Metric {
-            name: "backup_total_repo_size_gb".to_string(),
-            value: MetricValue::Float(total_size_gb),
-            status: Status::Ok,
-            timestamp,
-            description: Some("Total size of all backup repositories".to_string()),
-            unit: Some("GB".to_string()),
-        });
-
-        // Disk space metrics for backup directory
-        if let Some(ref disk_space) = backup_status.disk_space {
-            metrics.push(Metric {
-                name: "backup_disk_total_gb".to_string(),
-                value: MetricValue::Float(disk_space.total_gb as f32),
-                status: Status::Ok,
-                timestamp,
-                description: Some("Total disk space available for backups".to_string()),
-                unit: Some("GB".to_string()),
-            });
-
-            metrics.push(Metric {
-                name: "backup_disk_used_gb".to_string(),
-                value: MetricValue::Float(disk_space.used_gb as f32),
-                status: Status::Ok,
-                timestamp,
-                description: Some("Used disk space on backup drive".to_string()),
-                unit: Some("GB".to_string()),
-            });
-
-            metrics.push(Metric {
-                name: "backup_disk_available_gb".to_string(),
-                value: MetricValue::Float(disk_space.available_gb as f32),
-                status: Status::Ok,
-                timestamp,
-                description: Some("Available disk space on backup drive".to_string()),
-                unit: Some("GB".to_string()),
-            });
-
-            metrics.push(Metric {
-                name: "backup_disk_usage_percent".to_string(),
-                value: MetricValue::Float(disk_space.usage_percent as f32),
-                status: if disk_space.usage_percent >= 95.0 {
-                    Status::Critical
-                } else if disk_space.usage_percent >= 85.0 {
-                    Status::Warning
-                } else {
-                    Status::Ok
-                },
-                timestamp,
-                description: Some("Backup disk usage percentage".to_string()),
-                unit: Some("percent".to_string()),
-            });
-
-            // Add disk identification metrics if available from disk_space
-            if let Some(ref product_name) = disk_space.product_name {
-                metrics.push(Metric {
-                    name: "backup_disk_product_name".to_string(),
-                    value: MetricValue::String(product_name.clone()),
-                    status: Status::Ok,
-                    timestamp,
-                    description: Some("Backup disk product name from SMART data".to_string()),
-                    unit: None,
-                });
-            }
-
-            if let Some(ref serial_number) = disk_space.serial_number {
-                metrics.push(Metric {
-                    name: "backup_disk_serial_number".to_string(),
-                    value: MetricValue::String(serial_number.clone()),
-                    status: Status::Ok,
-                    timestamp,
-                    description: Some("Backup disk serial number from SMART data".to_string()),
-                    unit: None,
-                });
-            }
-        }
-
-        // Add standalone disk identification metrics from TOML fields
-        if let Some(ref product_name) = backup_status.disk_product_name {
-            metrics.push(Metric {
-                name: "backup_disk_product_name".to_string(),
-                value: MetricValue::String(product_name.clone()),
-                status: Status::Ok,
-                timestamp,
-                description: Some("Backup disk product name from SMART data".to_string()),
-                unit: None,
-            });
-        }
-
-        if let Some(ref serial_number) = backup_status.disk_serial_number {
-            metrics.push(Metric {
-                name: "backup_disk_serial_number".to_string(),
-                value: MetricValue::String(serial_number.clone()),
-                status: Status::Ok,
-                timestamp,
-                description: Some("Backup disk serial number from SMART data".to_string()),
-                unit: None,
-            });
-        }
-
-        // Count services by status
-        let mut status_counts = HashMap::new();
-        for service in backup_status.services.values() {
-            *status_counts.entry(service.status.clone()).or_insert(0) += 1;
-        }
-
-        for (status_name, count) in status_counts {
-            metrics.push(Metric {
-                name: format!("backup_services_{}_count", status_name),
-                value: MetricValue::Integer(count),
-                status: Status::Ok,
-                timestamp,
-                description: Some(format!("Number of services with status: {}", status_name)),
-                unit: Some("services".to_string()),
-            });
-        }
-
-        Ok(metrics)
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        debug!("Collecting backup status");
+        self.populate_backup_data(agent_data).await
     }
 }
 
-/// TOML structure for backup status file
-#[derive(Debug, Clone, Deserialize, Serialize)]
-pub struct BackupStatusToml {
-    pub backup_name: String,
-    pub start_time: String,
-    pub current_time: String,
-    pub duration_seconds: i64,
-    pub status: String,
-    pub last_updated: String,
-    pub disk_space: Option<DiskSpace>,
-    pub disk_product_name: Option<String>,
-    pub disk_serial_number: Option<String>,
-    pub services: HashMap<String, ServiceStatus>,
-}
-
-#[derive(Debug, Clone, Deserialize, Serialize)]
-pub struct DiskSpace {
-    pub total_bytes: u64,
-    pub used_bytes: u64,
-    pub available_bytes: u64,
-    pub total_gb: f64,
-    pub used_gb: f64,
-    pub available_gb: f64,
-    pub usage_percent: f64,
-    // Optional disk identification fields
-    pub product_name: Option<String>,
-    pub serial_number: Option<String>,
-}
-
-#[derive(Debug, Clone, Deserialize, Serialize)]
-pub struct ServiceStatus {
-    pub status: String,
-    pub exit_code: i64,
-    pub repo_path: String,
-    pub archive_count: i64,
-    pub repo_size_bytes: u64,
-}
+/// Backup status structure from JSON file
+#[derive(Debug, Clone, Serialize, Deserialize)]
+struct BackupStatus {
+    pub status: String,            // "completed", "running", "failed", etc.
+    pub last_run: u64,            // Unix timestamp
+    pub next_scheduled: u64,      // Unix timestamp  
+    pub total_size_gb: f32,       // Total backup size in GB
+    pub repository_health: String, // "ok", "warning", "error"
+}

agent/src/collectors/cpu.rs

@@ -1,5 +1,5 @@
 use async_trait::async_trait;
-use cm_dashboard_shared::{registry, Metric, MetricValue, Status, StatusTracker, HysteresisThresholds};
+use cm_dashboard_shared::{AgentData, Status, HysteresisThresholds};
 
 use tracing::debug;
 
@@ -38,19 +38,31 @@ impl CpuCollector {
         }
     }
 
-    /// Calculate CPU load status using hysteresis thresholds
-    fn calculate_load_status(&self, metric_name: &str, load: f32, status_tracker: &mut StatusTracker) -> Status {
-        status_tracker.calculate_with_hysteresis(metric_name, load, &self.load_thresholds)
+    /// Calculate CPU load status using thresholds
+    fn calculate_load_status(&self, load: f32) -> Status {
+        if load >= self.load_thresholds.critical_high {
+            Status::Critical
+        } else if load >= self.load_thresholds.warning_high {
+            Status::Warning  
+        } else {
+            Status::Ok
+        }
     }
 
-    /// Calculate CPU temperature status using hysteresis thresholds
-    fn calculate_temperature_status(&self, metric_name: &str, temp: f32, status_tracker: &mut StatusTracker) -> Status {
-        status_tracker.calculate_with_hysteresis(metric_name, temp, &self.temperature_thresholds)
+    /// Calculate CPU temperature status using thresholds
+    fn calculate_temperature_status(&self, temp: f32) -> Status {
+        if temp >= self.temperature_thresholds.critical_high {
+            Status::Critical
+        } else if temp >= self.temperature_thresholds.warning_high {
+            Status::Warning
+        } else {
+            Status::Ok
+        }
     }
 
-    /// Collect CPU load averages from /proc/loadavg
+    /// Collect CPU load averages and populate AgentData
     /// Format: "0.52 0.58 0.59 1/257 12345"
-    async fn collect_load_averages(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
+    async fn collect_load_averages(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         let content = utils::read_proc_file("/proc/loadavg")?;
         let parts: Vec<&str> = content.trim().split_whitespace().collect();
 
@@ -65,53 +77,25 @@ impl CpuCollector {
         let load_5min = utils::parse_f32(parts[1])?;
         let load_15min = utils::parse_f32(parts[2])?;
 
-        // Only apply thresholds to 5-minute load average
-        let load_1min_status = Status::Ok;  // No alerting on 1min
-        let load_5min_status = self.calculate_load_status(registry::CPU_LOAD_5MIN, load_5min, status_tracker);  // Only 5min triggers alerts
-        let load_15min_status = Status::Ok;  // No alerting on 15min
+        // Populate CPU data directly
+        agent_data.system.cpu.load_1min = load_1min;
+        agent_data.system.cpu.load_5min = load_5min;
+        agent_data.system.cpu.load_15min = load_15min;
 
-        Ok(vec![
-            Metric::new(
-                registry::CPU_LOAD_1MIN.to_string(),
-                MetricValue::Float(load_1min),
-                load_1min_status,
-            )
-            .with_description("CPU load average over 1 minute".to_string()),
-            Metric::new(
-                registry::CPU_LOAD_5MIN.to_string(),
-                MetricValue::Float(load_5min),
-                load_5min_status,
-            )
-            .with_description("CPU load average over 5 minutes".to_string()),
-            Metric::new(
-                registry::CPU_LOAD_15MIN.to_string(),
-                MetricValue::Float(load_15min),
-                load_15min_status,
-            )
-            .with_description("CPU load average over 15 minutes".to_string()),
-        ])
+        Ok(())
     }
 
-    /// Collect CPU temperature from thermal zones
-    /// Prioritizes x86_pkg_temp over generic thermal zones (legacy behavior)
-    async fn collect_temperature(&self, status_tracker: &mut StatusTracker) -> Result<Option<Metric>, CollectorError> {
+    /// Collect CPU temperature and populate AgentData
+    /// Prioritizes x86_pkg_temp over generic thermal zones
+    async fn collect_temperature(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         // Try x86_pkg_temp first (Intel CPU package temperature)
         if let Ok(temp) = self
             .read_thermal_zone("/sys/class/thermal/thermal_zone0/temp")
             .await
         {
             let temp_celsius = temp as f32 / 1000.0;
-            let status = self.calculate_temperature_status(registry::CPU_TEMPERATURE_CELSIUS, temp_celsius, status_tracker);
-
-            return Ok(Some(
-                Metric::new(
-                    registry::CPU_TEMPERATURE_CELSIUS.to_string(),
-                    MetricValue::Float(temp_celsius),
-                    status,
-                )
-                .with_description("CPU package temperature".to_string())
-                .with_unit("°C".to_string()),
-            ));
+            agent_data.system.cpu.temperature_celsius = Some(temp_celsius);
+            return Ok(());
         }
 
         // Fallback: try other thermal zones
@@ -119,22 +103,14 @@ impl CpuCollector {
             let path = format!("/sys/class/thermal/thermal_zone{}/temp", zone_id);
             if let Ok(temp) = self.read_thermal_zone(&path).await {
                 let temp_celsius = temp as f32 / 1000.0;
-                let status = self.calculate_temperature_status(registry::CPU_TEMPERATURE_CELSIUS, temp_celsius, status_tracker);
-
-                return Ok(Some(
-                    Metric::new(
-                        registry::CPU_TEMPERATURE_CELSIUS.to_string(),
-                        MetricValue::Float(temp_celsius),
-                        status,
-                    )
-                    .with_description(format!("CPU temperature from thermal_zone{}", zone_id))
-                    .with_unit("°C".to_string()),
-                ));
+                agent_data.system.cpu.temperature_celsius = Some(temp_celsius);
+                return Ok(());
             }
         }
 
         debug!("No CPU temperature sensors found");
-        Ok(None)
+        // Leave temperature as None if not available
+        Ok(())
     }
 
     /// Read temperature from thermal zone efficiently
@@ -143,24 +119,16 @@ impl CpuCollector {
         utils::parse_u64(content.trim())
     }
 
-    /// Collect CPU frequency from /proc/cpuinfo or scaling governor
-    async fn collect_frequency(&self) -> Result<Option<Metric>, CollectorError> {
+    /// Collect CPU frequency and populate AgentData
+    async fn collect_frequency(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         // Try scaling frequency first (more accurate for current frequency)
         if let Ok(freq) =
             utils::read_proc_file("/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq")
         {
             if let Ok(freq_khz) = utils::parse_u64(freq.trim()) {
                 let freq_mhz = freq_khz as f32 / 1000.0;
-
-                return Ok(Some(
-                    Metric::new(
-                        registry::CPU_FREQUENCY_MHZ.to_string(),
-                        MetricValue::Float(freq_mhz),
-                        Status::Ok, // Frequency doesn't have status thresholds
-                    )
-                    .with_description("Current CPU frequency".to_string())
-                    .with_unit("MHz".to_string()),
-                ));
+                agent_data.system.cpu.frequency_mhz = freq_mhz;
+                return Ok(());
             }
         }
 
@@ -170,17 +138,8 @@ impl CpuCollector {
                 if line.starts_with("cpu MHz") {
                     if let Some(freq_str) = line.split(':').nth(1) {
                         if let Ok(freq_mhz) = utils::parse_f32(freq_str) {
-                            return Ok(Some(
-                                Metric::new(
-                                    registry::CPU_FREQUENCY_MHZ.to_string(),
-                                    MetricValue::Float(freq_mhz),
-                                    Status::Ok,
-                                )
-                                .with_description(
-                                    "CPU base frequency from /proc/cpuinfo".to_string(),
-                                )
-                                .with_unit("MHz".to_string()),
-                            ));
+                            agent_data.system.cpu.frequency_mhz = freq_mhz;
+                            return Ok(());
                         }
                     }
                     break; // Only need first CPU entry
@@ -189,38 +148,28 @@ impl CpuCollector {
         }
 
         debug!("CPU frequency not available");
-        Ok(None)
+        // Leave frequency as 0.0 if not available
+        Ok(())
     }
 }
 
 #[async_trait]
 impl Collector for CpuCollector {
-
-    async fn collect(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         debug!("Collecting CPU metrics");
         let start = std::time::Instant::now();
 
-        let mut metrics = Vec::with_capacity(5); // Pre-allocate for efficiency
-
         // Collect load averages (always available)
-        metrics.extend(self.collect_load_averages(status_tracker).await?);
+        self.collect_load_averages(agent_data).await?;
 
         // Collect temperature (optional)
-        if let Some(temp_metric) = self.collect_temperature(status_tracker).await? {
-            metrics.push(temp_metric);
-        }
+        self.collect_temperature(agent_data).await?;
 
         // Collect frequency (optional)
-        if let Some(freq_metric) = self.collect_frequency().await? {
-            metrics.push(freq_metric);
-        }
+        self.collect_frequency(agent_data).await?;
 
         let duration = start.elapsed();
-        debug!(
-            "CPU collection completed in {:?} with {} metrics",
-            duration,
-            metrics.len()
-        );
+        debug!("CPU collection completed in {:?}", duration);
 
         // Efficiency check: warn if collection takes too long
         if duration.as_millis() > 1 {
@@ -230,10 +179,14 @@ impl Collector for CpuCollector {
             );
         }
 
-        // Store performance metrics
-        // Performance tracking handled by cache system
+        // Calculate status using thresholds
+        agent_data.system.cpu.load_status = self.calculate_load_status(agent_data.system.cpu.load_1min);
+        agent_data.system.cpu.temperature_status = if let Some(temp) = agent_data.system.cpu.temperature_celsius {
+            self.calculate_temperature_status(temp)
+        } else {
+            Status::Unknown
+        };
 
-        Ok(metrics)
+        Ok(())
     }
-
 }

agent/src/collectors/disk.rs

@@ -1,596 +1,517 @@
 use anyhow::Result;
 use async_trait::async_trait;
-use cm_dashboard_shared::{Metric, MetricValue, Status, StatusTracker, HysteresisThresholds};
+use cm_dashboard_shared::{AgentData, DriveData, FilesystemData, PoolData, HysteresisThresholds, Status};
 
 use crate::config::DiskConfig;
 use std::process::Command;
 use std::time::Instant;
+use std::collections::HashMap;
 use tracing::debug;
 
 use super::{Collector, CollectorError};
 
-/// Information about a storage pool (mount point with underlying drives)
-#[derive(Debug, Clone)]
-struct StoragePool {
-    name: String,            // e.g., "steampool", "root"
-    mount_point: String,     // e.g., "/mnt/steampool", "/"
-    filesystem: String,      // e.g., "mergerfs", "ext4", "zfs", "btrfs"
-    storage_type: String,    // e.g., "mergerfs", "single", "raid", "zfs"
-    size: String,            // e.g., "2.5TB"
-    used: String,            // e.g., "2.1TB"
-    available: String,       // e.g., "400GB"
-    usage_percent: f32,      // e.g., 85.0
-    underlying_drives: Vec<DriveInfo>, // Individual physical drives
-}
-
-/// Information about an individual physical drive
-#[derive(Debug, Clone)]
-struct DriveInfo {
-    device: String,          // e.g., "sda", "nvme0n1"
-    health_status: String,   // e.g., "PASSED", "FAILED"
-    temperature: Option<f32>, // e.g., 45.0°C
-    wear_level: Option<f32>, // e.g., 12.0% (for SSDs)
-}
-
-/// Disk usage collector for monitoring filesystem sizes
+/// Storage collector with clean architecture and structured data output
 pub struct DiskCollector {
     config: DiskConfig,
     temperature_thresholds: HysteresisThresholds,
-    detected_devices: std::collections::HashMap<String, Vec<String>>, // mount_point -> devices
+}
+
+/// A physical drive with its filesystems
+#[derive(Debug, Clone)]
+struct PhysicalDrive {
+    name: String,                        // e.g., "nvme0n1", "sda" 
+    health: String,                      // SMART health status
+    temperature_celsius: Option<f32>,    // Drive temperature
+    wear_percent: Option<f32>,           // SSD wear level
+    filesystems: Vec<Filesystem>,        // mounted filesystems on this drive
+}
+
+/// A filesystem mounted on a drive
+#[derive(Debug, Clone)]
+struct Filesystem {
+    mount_point: String,             // e.g., "/", "/boot"
+    usage_percent: f32,              // Usage percentage
+    used_bytes: u64,                 // Used bytes
+    total_bytes: u64,                // Total bytes
+}
+
+/// MergerFS pool
+#[derive(Debug, Clone)]
+struct MergerfsPool {
+    name: String,                    // e.g., "srv_media"
+    mount_point: String,             // e.g., "/srv/media"
+    total_bytes: u64,                // Pool total bytes
+    used_bytes: u64,                 // Pool used bytes
+    data_drives: Vec<PoolDrive>,     // Data drives in pool
+    parity_drives: Vec<PoolDrive>,   // Parity drives in pool
+}
+
+/// Drive in a storage pool
+#[derive(Debug, Clone)]
+struct PoolDrive {
+    name: String,                    // Drive name
+    temperature_celsius: Option<f32>, // Drive temperature
 }
 
 impl DiskCollector {
     pub fn new(config: DiskConfig) -> Self {
-        // Create hysteresis thresholds for disk temperature from config
-        let temperature_thresholds = HysteresisThresholds::with_custom_gaps(
+        let temperature_thresholds = HysteresisThresholds::new(
             config.temperature_warning_celsius,
-            5.0,  // 5°C gap for recovery
             config.temperature_critical_celsius,
-            5.0,  // 5°C gap for recovery
         );
         
-        // Detect devices for all configured filesystems at startup
-        let mut detected_devices = std::collections::HashMap::new();
-        for fs_config in &config.filesystems {
-            if fs_config.monitor {
-                if let Ok(devices) = Self::detect_device_for_mount_point_static(&fs_config.mount_point) {
-                    detected_devices.insert(fs_config.mount_point.clone(), devices);
-                }
-            }
-        }
-        
-        Self { 
+        Self {
             config,
             temperature_thresholds,
-            detected_devices,
         }
     }
 
-    /// Calculate disk temperature status using hysteresis thresholds
-    fn calculate_temperature_status(&self, metric_name: &str, temperature: f32, status_tracker: &mut StatusTracker) -> Status {
-        status_tracker.calculate_with_hysteresis(metric_name, temperature, &self.temperature_thresholds)
+    /// Collect all storage data and populate AgentData
+    async fn collect_storage_data(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        let start_time = Instant::now();
+        debug!("Starting clean storage collection");
+
+        // Step 1: Get mount points and their backing devices
+        let mount_devices = self.get_mount_devices().await?;
+        
+        // Step 2: Get filesystem usage for each mount point using df
+        let filesystem_usage = self.get_filesystem_usage(&mount_devices).map_err(|e| CollectorError::Parse {
+            value: "filesystem usage".to_string(),
+            error: format!("Failed to get filesystem usage: {}", e),
+        })?;
+        
+        // Step 3: Detect MergerFS pools
+        let mergerfs_pools = self.detect_mergerfs_pools(&filesystem_usage).map_err(|e| CollectorError::Parse {
+            value: "mergerfs pools".to_string(),
+            error: format!("Failed to detect mergerfs pools: {}", e),
+        })?;
+        
+        // Step 4: Group filesystems by physical drive (excluding mergerfs members)
+        let physical_drives = self.group_by_physical_drive(&mount_devices, &filesystem_usage, &mergerfs_pools).map_err(|e| CollectorError::Parse {
+            value: "physical drives".to_string(),
+            error: format!("Failed to group by physical drive: {}", e),
+        })?;
+        
+        // Step 5: Get SMART data for all drives
+        let smart_data = self.get_smart_data_for_drives(&physical_drives, &mergerfs_pools).await;
+
+        // Step 6: Populate AgentData
+        self.populate_drives_data(&physical_drives, &smart_data, agent_data)?;
+        self.populate_pools_data(&mergerfs_pools, &smart_data, agent_data)?;
+
+        let elapsed = start_time.elapsed();
+        debug!("Storage collection completed in {:?}", elapsed);
+
+        Ok(())
     }
 
+    /// Get block devices and their mount points using lsblk
+    async fn get_mount_devices(&self) -> Result<HashMap<String, String>, CollectorError> {
+        let output = Command::new("lsblk")
+            .args(&["-rn", "-o", "NAME,MOUNTPOINT"])
+            .output()
+            .map_err(|e| CollectorError::SystemRead {
+                path: "block devices".to_string(),
+                error: e.to_string(),
+            })?;
 
-    /// Get configured storage pools with individual drive information
-    fn get_configured_storage_pools(&self) -> Result<Vec<StoragePool>> {
-        let mut storage_pools = Vec::new();
-
-        for fs_config in &self.config.filesystems {
-            if !fs_config.monitor {
-                continue;
+        let mut mount_devices = HashMap::new();
+        for line in String::from_utf8_lossy(&output.stdout).lines() {
+            let parts: Vec<&str> = line.split_whitespace().collect();
+            if parts.len() >= 2 {
+                let device_name = parts[0];
+                let mount_point = parts[1];
+                
+                // Skip swap partitions and unmounted devices
+                if mount_point == "[SWAP]" || mount_point.is_empty() {
+                    continue;
+                }
+                
+                // Convert device name to full path
+                let device_path = format!("/dev/{}", device_name);
+                mount_devices.insert(mount_point.to_string(), device_path);
             }
+        }
 
-            // Get filesystem stats for the mount point
-            match self.get_filesystem_info(&fs_config.mount_point) {
-                Ok((total_bytes, used_bytes)) => {
-                    let available_bytes = total_bytes - used_bytes;
-                    let usage_percent = if total_bytes > 0 {
-                        (used_bytes as f64 / total_bytes as f64) * 100.0
-                    } else {
-                        0.0
-                    };
+        debug!("Found {} mounted block devices", mount_devices.len());
+        Ok(mount_devices)
+    }
 
-                    // Convert bytes to human-readable format
-                    let size = self.bytes_to_human_readable(total_bytes);
-                    let used = self.bytes_to_human_readable(used_bytes);
-                    let available = self.bytes_to_human_readable(available_bytes);
-
-                    // Get individual drive information using pre-detected devices
-                    let device_names = self.detected_devices.get(&fs_config.mount_point).cloned().unwrap_or_default();
-                    let underlying_drives = self.get_drive_info_for_devices(&device_names)?;
-
-                    storage_pools.push(StoragePool {
-                        name: fs_config.name.clone(),
-                        mount_point: fs_config.mount_point.clone(),
-                        filesystem: fs_config.fs_type.clone(),
-                        storage_type: fs_config.storage_type.clone(),
-                        size,
-                        used,
-                        available,
-                        usage_percent: usage_percent as f32,
-                        underlying_drives,
-                    });
-
-                    debug!(
-                        "Storage pool '{}' ({}) at {} with {} detected drives",
-                        fs_config.name, fs_config.storage_type, fs_config.mount_point, device_names.len()
-                    );
+    /// Use df to get filesystem usage for mount points
+    fn get_filesystem_usage(&self, mount_devices: &HashMap<String, String>) -> anyhow::Result<HashMap<String, (u64, u64)>> {
+        let mut filesystem_usage = HashMap::new();
+        
+        for mount_point in mount_devices.keys() {
+            match self.get_filesystem_info(mount_point) {
+                Ok((total, used)) => {
+                    filesystem_usage.insert(mount_point.clone(), (total, used));
                 }
                 Err(e) => {
-                    debug!(
-                        "Failed to get filesystem info for storage pool '{}': {}",
-                        fs_config.name, e
-                    );
+                    debug!("Failed to get filesystem info for {}: {}", mount_point, e);
                 }
             }
         }
 
-        Ok(storage_pools)
+        Ok(filesystem_usage)
     }
 
-    /// Get drive information for a list of device names
-    fn get_drive_info_for_devices(&self, device_names: &[String]) -> Result<Vec<DriveInfo>> {
-        let mut drives = Vec::new();
-        
-        for device_name in device_names {
-            let device_path = format!("/dev/{}", device_name);
-            
-            // Get SMART data for this drive
-            let (health_status, temperature, wear_level) = self.get_smart_data(&device_path);
-            
-            drives.push(DriveInfo {
-                device: device_name.clone(),
-                health_status: health_status.clone(),
-                temperature,
-                wear_level,
-            });
-            
-            debug!(
-                "Drive info for {}: health={}, temp={:?}°C, wear={:?}%",
-                device_name, health_status, temperature, wear_level
-            );
-        }
-        
-        Ok(drives)
-    }
-
-    /// Get SMART data for a drive (health, temperature, wear level)
-    fn get_smart_data(&self, device_path: &str) -> (String, Option<f32>, Option<f32>) {
-        // Try to get SMART data using smartctl
-        let output = Command::new("sudo")
-            .arg("smartctl")
-            .arg("-a")
-            .arg(device_path)
-            .output();
-            
-        match output {
-            Ok(result) if result.status.success() => {
-                let stdout = String::from_utf8_lossy(&result.stdout);
-                
-                // Parse health status
-                let health = if stdout.contains("PASSED") {
-                    "PASSED".to_string()
-                } else if stdout.contains("FAILED") {
-                    "FAILED".to_string()
-                } else {
-                    "UNKNOWN".to_string()
-                };
-                
-                // Parse temperature (look for various temperature indicators)
-                let temperature = self.parse_temperature_from_smart(&stdout);
-                
-                // Parse wear level (for SSDs)
-                let wear_level = self.parse_wear_level_from_smart(&stdout);
-                
-                (health, temperature, wear_level)
-            }
-            _ => {
-                debug!("Failed to get SMART data for {}", device_path);
-                ("UNKNOWN".to_string(), None, None)
-            }
-        }
-    }
-
-    /// Parse temperature from SMART output
-    fn parse_temperature_from_smart(&self, smart_output: &str) -> Option<f32> {
-        for line in smart_output.lines() {
-            // Look for temperature in various formats
-            if line.contains("Temperature_Celsius") || line.contains("Temperature") {
-                let parts: Vec<&str> = line.split_whitespace().collect();
-                if parts.len() >= 10 {
-                    if let Ok(temp) = parts[9].parse::<f32>() {
-                        return Some(temp);
-                    }
-                }
-            }
-            // NVMe drives might show temperature differently
-            if line.contains("temperature:") {
-                if let Some(temp_part) = line.split("temperature:").nth(1) {
-                    if let Some(temp_str) = temp_part.split_whitespace().next() {
-                        if let Ok(temp) = temp_str.parse::<f32>() {
-                            return Some(temp);
-                        }
-                    }
-                }
-            }
-        }
-        None
-    }
-
-    /// Parse wear level from SMART output (SSD wear leveling)
-    /// Supports both NVMe and SATA SSD wear indicators
-    fn parse_wear_level_from_smart(&self, smart_output: &str) -> Option<f32> {
-        for line in smart_output.lines() {
-            let line = line.trim();
-            
-            // NVMe drives - direct percentage used
-            if line.contains("Percentage Used:") {
-                if let Some(wear_part) = line.split("Percentage Used:").nth(1) {
-                    if let Some(wear_str) = wear_part.split('%').next() {
-                        if let Ok(wear) = wear_str.trim().parse::<f32>() {
-                            return Some(wear);
-                        }
-                    }
-                }
-            }
-            
-            // SATA SSD attributes - parse SMART table format
-            // Format: ID ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
-            let parts: Vec<&str> = line.split_whitespace().collect();
-            if parts.len() >= 10 {
-                // SSD Life Left / Percent Lifetime Remaining (higher = less wear)
-                if line.contains("SSD_Life_Left") || line.contains("Percent_Lifetime_Remain") {
-                    if let Ok(remaining) = parts[3].parse::<f32>() { // VALUE column
-                        return Some(100.0 - remaining); // Convert remaining to used
-                    }
-                }
-                
-                // Media Wearout Indicator (lower = more wear, normalize to 0-100)
-                if line.contains("Media_Wearout_Indicator") {
-                    if let Ok(remaining) = parts[3].parse::<f32>() { // VALUE column
-                        return Some(100.0 - remaining); // Convert remaining to used
-                    }
-                }
-                
-                // Wear Leveling Count (higher = less wear, but varies by manufacturer)
-                if line.contains("Wear_Leveling_Count") {
-                    if let Ok(wear_count) = parts[3].parse::<f32>() { // VALUE column
-                        // Most SSDs: 100 = new, decreases with wear
-                        if wear_count <= 100.0 {
-                            return Some(100.0 - wear_count);
-                        }
-                    }
-                }
-                
-                // Total LBAs Written - calculate against typical endurance if available
-                // This is more complex and manufacturer-specific, so we skip for now
-            }
-        }
-        None
-    }
-
-    /// Convert bytes to human-readable format
-    fn bytes_to_human_readable(&self, bytes: u64) -> String {
-        const UNITS: &[&str] = &["B", "K", "M", "G", "T"];
-        let mut size = bytes as f64;
-        let mut unit_index = 0;
-
-        while size >= 1024.0 && unit_index < UNITS.len() - 1 {
-            size /= 1024.0;
-            unit_index += 1;
-        }
-
-        if unit_index == 0 {
-            format!("{:.0}{}", size, UNITS[unit_index])
-        } else {
-            format!("{:.1}{}", size, UNITS[unit_index])
-        }
-    }
-
-    /// Detect device backing a mount point using lsblk (static version for startup)
-    fn detect_device_for_mount_point_static(mount_point: &str) -> Result<Vec<String>> {
-        let output = Command::new("lsblk")
-            .args(&["-n", "-o", "NAME,MOUNTPOINT"])
-            .output()?;
-        
-        if !output.status.success() {
-            return Ok(Vec::new());
-        }
-        
-        let output_str = String::from_utf8_lossy(&output.stdout);
-        
-        for line in output_str.lines() {
-            let parts: Vec<&str> = line.split_whitespace().collect();
-            if parts.len() >= 2 && parts[1] == mount_point {
-                // Remove tree symbols and extract device name (e.g., "├─nvme0n1p2" -> "nvme0n1p2")
-                let device_name = parts[0]
-                    .trim_start_matches('├')
-                    .trim_start_matches('└')
-                    .trim_start_matches('─')
-                    .trim();
-                
-                // Extract base device name (e.g., "nvme0n1p2" -> "nvme0n1")
-                if let Some(base_device) = Self::extract_base_device(device_name) {
-                    return Ok(vec![base_device]);
-                }
-            }
-        }
-        
-        Ok(Vec::new())
-    }
-
-    /// Extract base device name from partition (e.g., "nvme0n1p2" -> "nvme0n1", "sda1" -> "sda")
-    fn extract_base_device(device_name: &str) -> Option<String> {
-        // Handle NVMe devices (nvme0n1p1 -> nvme0n1)
-        if device_name.starts_with("nvme") {
-            if let Some(p_pos) = device_name.find('p') {
-                return Some(device_name[..p_pos].to_string());
-            }
-        }
-        
-        // Handle traditional devices (sda1 -> sda)
-        if device_name.len() > 1 {
-            let chars: Vec<char> = device_name.chars().collect();
-            let mut end_idx = chars.len();
-            
-            // Find where the device name ends and partition number begins
-            for (i, &c) in chars.iter().enumerate().rev() {
-                if !c.is_ascii_digit() {
-                    end_idx = i + 1;
-                    break;
-                }
-            }
-            
-            if end_idx > 0 && end_idx < chars.len() {
-                return Some(chars[..end_idx].iter().collect());
-            }
-        }
-        
-        // If no partition detected, return as-is
-        Some(device_name.to_string())
-    }
-
-
-    /// Get filesystem info using df command
-    fn get_filesystem_info(&self, path: &str) -> Result<(u64, u64)> {
+    /// Get filesystem info for a single mount point
+    fn get_filesystem_info(&self, mount_point: &str) -> Result<(u64, u64), CollectorError> {
         let output = Command::new("df")
-            .arg("--block-size=1")
-            .arg(path)
-            .output()?;
+            .args(&["--block-size=1", mount_point])
+            .output()
+            .map_err(|e| CollectorError::SystemRead {
+                path: format!("df {}", mount_point),
+                error: e.to_string(),
+            })?;
 
-        if !output.status.success() {
-            return Err(anyhow::anyhow!("df command failed for {}", path));
-        }
-
-        let output_str = String::from_utf8(output.stdout)?;
+        let output_str = String::from_utf8_lossy(&output.stdout);
         let lines: Vec<&str> = output_str.lines().collect();
-
+        
         if lines.len() < 2 {
-            return Err(anyhow::anyhow!("Unexpected df output format"));
+            return Err(CollectorError::Parse {
+                value: output_str.to_string(),
+                error: "Expected at least 2 lines from df output".to_string(),
+            });
         }
 
-        let fields: Vec<&str> = lines[1].split_whitespace().collect();
-        if fields.len() < 4 {
-            return Err(anyhow::anyhow!("Unexpected df fields count"));
+        // Parse the data line (skip header)
+        let parts: Vec<&str> = lines[1].split_whitespace().collect();
+        if parts.len() < 4 {
+            return Err(CollectorError::Parse {
+                value: lines[1].to_string(),
+                error: "Expected at least 4 fields in df output".to_string(),
+            });
         }
 
-        let total_bytes = fields[1].parse::<u64>()?;
-        let used_bytes = fields[2].parse::<u64>()?;
+        let total_bytes: u64 = parts[1].parse().map_err(|e| CollectorError::Parse {
+            value: parts[1].to_string(),
+            error: format!("Failed to parse total bytes: {}", e),
+        })?;
+
+        let used_bytes: u64 = parts[2].parse().map_err(|e| CollectorError::Parse {
+            value: parts[2].to_string(),
+            error: format!("Failed to parse used bytes: {}", e),
+        })?;
 
         Ok((total_bytes, used_bytes))
     }
 
+    /// Detect MergerFS pools from mount data
+    fn detect_mergerfs_pools(&self, _filesystem_usage: &HashMap<String, (u64, u64)>) -> anyhow::Result<Vec<MergerfsPool>> {
+        let pools = Vec::new();
+        
+        // For now, return empty pools - full mergerfs detection would require parsing /proc/mounts for fuse.mergerfs
+        // This ensures we don't break existing functionality
+        
+        Ok(pools)
+    }
 
-    /// Parse size string (e.g., "120G", "45M") to GB value
-    fn parse_size_to_gb(&self, size_str: &str) -> f32 {
-        let size_str = size_str.trim();
-        if size_str.is_empty() || size_str == "-" {
-            return 0.0;
+    /// Group filesystems by physical drive (excluding mergerfs members)
+    fn group_by_physical_drive(
+        &self, 
+        mount_devices: &HashMap<String, String>,
+        filesystem_usage: &HashMap<String, (u64, u64)>,
+        mergerfs_pools: &[MergerfsPool]
+    ) -> anyhow::Result<Vec<PhysicalDrive>> {
+        let mut drive_groups: HashMap<String, Vec<Filesystem>> = HashMap::new();
+        
+        // Get all mergerfs member paths to exclude them
+        let mut mergerfs_members = std::collections::HashSet::new();
+        for pool in mergerfs_pools {
+            for drive in &pool.data_drives {
+                mergerfs_members.insert(drive.name.clone());
+            }
+            for drive in &pool.parity_drives {
+                mergerfs_members.insert(drive.name.clone());
+            }
+        }
+        
+        // Group filesystems by base device
+        for (mount_point, device) in mount_devices {
+            // Skip mergerfs member mounts
+            if mergerfs_members.contains(mount_point) {
+                continue;
+            }
+            
+            let base_device = self.extract_base_device(device);
+            
+            if let Some((total, used)) = filesystem_usage.get(mount_point) {
+                let usage_percent = (*used as f32 / *total as f32) * 100.0;
+                
+                let filesystem = Filesystem {
+                    mount_point: mount_point.clone(), // Keep actual mount point like "/" and "/boot"
+                    usage_percent,
+                    used_bytes: *used,
+                    total_bytes: *total,
+                };
+                
+                drive_groups.entry(base_device).or_insert_with(Vec::new).push(filesystem);
+            }
+        }
+        
+        // Convert to PhysicalDrive structs
+        let mut physical_drives = Vec::new();
+        for (drive_name, filesystems) in drive_groups {
+            let physical_drive = PhysicalDrive {
+                name: drive_name,
+                health: "UNKNOWN".to_string(), // Will be updated with SMART data
+                temperature_celsius: None,
+                wear_percent: None,
+                filesystems,
+            };
+            physical_drives.push(physical_drive);
+        }
+        
+        physical_drives.sort_by(|a, b| a.name.cmp(&b.name));
+        Ok(physical_drives)
+    }
+
+    /// Extract base device name from device path
+    fn extract_base_device(&self, device: &str) -> String {
+        // Extract base device name (e.g., "/dev/nvme0n1p1" -> "nvme0n1")
+        if let Some(dev_name) = device.strip_prefix("/dev/") {
+            // Remove partition numbers: nvme0n1p1 -> nvme0n1, sda1 -> sda
+            if let Some(pos) = dev_name.find('p') {
+                if dev_name[pos+1..].chars().all(char::is_numeric) {
+                    return dev_name[..pos].to_string();
+                }
+            }
+            // Handle traditional naming: sda1 -> sda
+            let mut result = String::new();
+            for ch in dev_name.chars() {
+                if ch.is_ascii_digit() {
+                    break;
+                }
+                result.push(ch);
+            }
+            if !result.is_empty() {
+                return result;
+            }
+        }
+        device.to_string()
+    }
+
+    /// Get SMART data for drives
+    async fn get_smart_data_for_drives(&self, physical_drives: &[PhysicalDrive], mergerfs_pools: &[MergerfsPool]) -> HashMap<String, SmartData> {
+        let mut smart_data = HashMap::new();
+        
+        // Collect all drive names
+        let mut all_drives = std::collections::HashSet::new();
+        for drive in physical_drives {
+            all_drives.insert(drive.name.clone());
+        }
+        for pool in mergerfs_pools {
+            for drive in &pool.data_drives {
+                all_drives.insert(drive.name.clone());
+            }
+            for drive in &pool.parity_drives {
+                all_drives.insert(drive.name.clone());
+            }
         }
 
-        // Extract numeric part and unit
-        let (num_str, unit) = if let Some(last_char) = size_str.chars().last() {
-            if last_char.is_alphabetic() {
-                let num_part = &size_str[..size_str.len() - 1];
-                let unit_part = &size_str[size_str.len() - 1..];
-                (num_part, unit_part)
-            } else {
-                (size_str, "")
+        // Get SMART data for each drive
+        for drive_name in all_drives {
+            if let Ok(data) = self.get_smart_data(&drive_name).await {
+                smart_data.insert(drive_name, data);
             }
+        }
+
+        smart_data
+    }
+
+    /// Get SMART data for a single drive
+    async fn get_smart_data(&self, drive_name: &str) -> Result<SmartData, CollectorError> {
+        let output = Command::new("sudo")
+            .args(&["smartctl", "-a", &format!("/dev/{}", drive_name)])
+            .output()
+            .map_err(|e| CollectorError::SystemRead {
+                path: format!("SMART data for {}", drive_name),
+                error: e.to_string(),
+            })?;
+
+        let output_str = String::from_utf8_lossy(&output.stdout);
+        let error_str = String::from_utf8_lossy(&output.stderr);
+        
+        // Debug logging for SMART command results
+        debug!("SMART output for {}: status={}, stdout_len={}, stderr={}", 
+            drive_name, output.status, output_str.len(), error_str);
+        
+        if !output.status.success() {
+            debug!("SMART command failed for {}: {}", drive_name, error_str);
+            // Return unknown data rather than failing completely
+            return Ok(SmartData {
+                health: "UNKNOWN".to_string(),
+                temperature_celsius: None,
+                wear_percent: None,
+            });
+        }
+        
+        let mut health = "UNKNOWN".to_string();
+        let mut temperature = None;
+        let mut wear_percent = None;
+
+        for line in output_str.lines() {
+            if line.contains("SMART overall-health") {
+                if line.contains("PASSED") {
+                    health = "PASSED".to_string();
+                } else if line.contains("FAILED") {
+                    health = "FAILED".to_string();
+                }
+            }
+            
+            // Temperature parsing for different drive types
+            if line.contains("Temperature_Celsius") || line.contains("Airflow_Temperature_Cel") {
+                // Traditional SATA drives: attribute table format
+                if let Some(temp_str) = line.split_whitespace().nth(9) {
+                    if let Ok(temp) = temp_str.parse::<f32>() {
+                        temperature = Some(temp);
+                    }
+                }
+            } else if line.starts_with("Temperature:") {
+                // NVMe drives: simple "Temperature: 27 Celsius" format
+                let parts: Vec<&str> = line.split_whitespace().collect();
+                if parts.len() >= 2 {
+                    if let Ok(temp) = parts[1].parse::<f32>() {
+                        temperature = Some(temp);
+                    }
+                }
+            }
+            
+            // Wear level parsing for SSDs
+            if line.contains("Wear_Leveling_Count") || line.contains("SSD_Life_Left") {
+                if let Some(wear_str) = line.split_whitespace().nth(9) {
+                    if let Ok(wear) = wear_str.parse::<f32>() {
+                        wear_percent = Some(100.0 - wear); // Convert remaining life to wear
+                    }
+                }
+            }
+            // NVMe wear parsing: "Percentage Used: 1%"
+            if line.contains("Percentage Used:") {
+                if let Some(percent_part) = line.split("Percentage Used:").nth(1) {
+                    if let Some(percent_str) = percent_part.split_whitespace().next() {
+                        if let Some(percent_clean) = percent_str.strip_suffix('%') {
+                            if let Ok(wear) = percent_clean.parse::<f32>() {
+                                wear_percent = Some(wear);
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        Ok(SmartData {
+            health,
+            temperature_celsius: temperature,
+            wear_percent,
+        })
+    }
+
+    /// Populate drives data into AgentData
+    fn populate_drives_data(&self, physical_drives: &[PhysicalDrive], smart_data: &HashMap<String, SmartData>, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        for drive in physical_drives {
+            let smart = smart_data.get(&drive.name);
+            
+            let mut filesystems: Vec<FilesystemData> = drive.filesystems.iter().map(|fs| {
+                FilesystemData {
+                    mount: fs.mount_point.clone(), // This preserves "/" and "/boot" correctly
+                    usage_percent: fs.usage_percent,
+                    used_gb: fs.used_bytes as f32 / (1024.0 * 1024.0 * 1024.0),
+                    total_gb: fs.total_bytes as f32 / (1024.0 * 1024.0 * 1024.0),
+                    usage_status: self.calculate_filesystem_usage_status(fs.usage_percent),
+                }
+            }).collect();
+            
+            // Sort filesystems by mount point for consistent display order
+            filesystems.sort_by(|a, b| a.mount.cmp(&b.mount));
+
+            agent_data.system.storage.drives.push(DriveData {
+                name: drive.name.clone(),
+                health: smart.map(|s| s.health.clone()).unwrap_or_else(|| drive.health.clone()),
+                temperature_celsius: smart.and_then(|s| s.temperature_celsius),
+                wear_percent: smart.and_then(|s| s.wear_percent),
+                filesystems,
+                temperature_status: smart.and_then(|s| s.temperature_celsius)
+                    .map(|temp| self.calculate_temperature_status(temp))
+                    .unwrap_or(Status::Unknown),
+                health_status: self.calculate_health_status(
+                    smart.map(|s| s.health.as_str()).unwrap_or("UNKNOWN")
+                ),
+            });
+        }
+
+        Ok(())
+    }
+
+    /// Populate pools data into AgentData
+    fn populate_pools_data(&self, mergerfs_pools: &[MergerfsPool], _smart_data: &HashMap<String, SmartData>, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        for pool in mergerfs_pools {
+            let pool_data = PoolData {
+                name: pool.name.clone(),
+                mount: pool.mount_point.clone(),
+                pool_type: "mergerfs".to_string(),
+                health: "healthy".to_string(), // TODO: Calculate based on member drives
+                usage_percent: (pool.used_bytes as f32 / pool.total_bytes as f32) * 100.0,
+                used_gb: pool.used_bytes as f32 / (1024.0 * 1024.0 * 1024.0),
+                total_gb: pool.total_bytes as f32 / (1024.0 * 1024.0 * 1024.0),
+                data_drives: pool.data_drives.iter().map(|d| cm_dashboard_shared::PoolDriveData {
+                    name: d.name.clone(),
+                    temperature_celsius: d.temperature_celsius,
+                    health: "unknown".to_string(),
+                    wear_percent: None,
+                }).collect(),
+                parity_drives: pool.parity_drives.iter().map(|d| cm_dashboard_shared::PoolDriveData {
+                    name: d.name.clone(),
+                    temperature_celsius: d.temperature_celsius,
+                    health: "unknown".to_string(),
+                    wear_percent: None,
+                }).collect(),
+            };
+
+            agent_data.system.storage.pools.push(pool_data);
+        }
+
+        Ok(())
+    }
+
+    /// Calculate filesystem usage status
+    fn calculate_filesystem_usage_status(&self, usage_percent: f32) -> Status {
+        // Use standard filesystem warning/critical thresholds
+        if usage_percent >= 95.0 {
+            Status::Critical
+        } else if usage_percent >= 85.0 {
+            Status::Warning
         } else {
-            (size_str, "")
-        };
+            Status::Ok
+        }
+    }
 
-        let number: f32 = num_str.parse().unwrap_or(0.0);
+    /// Calculate drive temperature status
+    fn calculate_temperature_status(&self, temperature: f32) -> Status {
+        self.temperature_thresholds.evaluate(temperature)
+    }
 
-        match unit.to_uppercase().as_str() {
-            "T" | "TB" => number * 1024.0,
-            "G" | "GB" => number,
-            "M" | "MB" => number / 1024.0,
-            "K" | "KB" => number / (1024.0 * 1024.0),
-            "B" | "" => number / (1024.0 * 1024.0 * 1024.0),
-            _ => number, // Assume GB if unknown unit
+    /// Calculate drive health status
+    fn calculate_health_status(&self, health: &str) -> Status {
+        match health {
+            "PASSED" => Status::Ok,
+            "FAILED" => Status::Critical,
+            _ => Status::Unknown,
         }
     }
 }
 
 #[async_trait]
 impl Collector for DiskCollector {
-
-    async fn collect(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
-        let start_time = Instant::now();
-        debug!("Collecting storage pool and individual drive metrics");
-
-        let mut metrics = Vec::new();
-
-        // Get configured storage pools with individual drive data
-        let storage_pools = match self.get_configured_storage_pools() {
-            Ok(pools) => {
-                debug!("Found {} storage pools", pools.len());
-                pools
-            }
-            Err(e) => {
-                debug!("Failed to get storage pools: {}", e);
-                Vec::new()
-            }
-        };
-
-        // Generate metrics for each storage pool and its underlying drives
-        for storage_pool in &storage_pools {
-            let timestamp = chrono::Utc::now().timestamp() as u64;
-
-            // Storage pool overall metrics
-            let pool_name = &storage_pool.name;
-            
-            // Parse size strings to get actual values for calculations
-            let size_gb = self.parse_size_to_gb(&storage_pool.size);
-            let used_gb = self.parse_size_to_gb(&storage_pool.used);
-            let avail_gb = self.parse_size_to_gb(&storage_pool.available);
-
-            // Calculate status based on configured thresholds
-            let pool_status = if storage_pool.usage_percent >= self.config.usage_critical_percent {
-                Status::Critical
-            } else if storage_pool.usage_percent >= self.config.usage_warning_percent {
-                Status::Warning
-            } else {
-                Status::Ok
-            };
-
-            // Storage pool info metrics
-            metrics.push(Metric {
-                name: format!("disk_{}_mount_point", pool_name),
-                value: MetricValue::String(storage_pool.mount_point.clone()),
-                unit: None,
-                description: Some(format!("Mount: {}", storage_pool.mount_point)),
-                status: Status::Ok,
-                timestamp,
-            });
-
-            metrics.push(Metric {
-                name: format!("disk_{}_filesystem", pool_name),
-                value: MetricValue::String(storage_pool.filesystem.clone()),
-                unit: None,
-                description: Some(format!("FS: {}", storage_pool.filesystem)),
-                status: Status::Ok,
-                timestamp,
-            });
-
-            metrics.push(Metric {
-                name: format!("disk_{}_storage_type", pool_name),
-                value: MetricValue::String(storage_pool.storage_type.clone()),
-                unit: None,
-                description: Some(format!("Type: {}", storage_pool.storage_type)),
-                status: Status::Ok,
-                timestamp,
-            });
-
-            // Storage pool size metrics
-            metrics.push(Metric {
-                name: format!("disk_{}_total_gb", pool_name),
-                value: MetricValue::Float(size_gb),
-                unit: Some("GB".to_string()),
-                description: Some(format!("Total: {}", storage_pool.size)),
-                status: Status::Ok,
-                timestamp,
-            });
-
-            metrics.push(Metric {
-                name: format!("disk_{}_used_gb", pool_name),
-                value: MetricValue::Float(used_gb),
-                unit: Some("GB".to_string()),
-                description: Some(format!("Used: {}", storage_pool.used)),
-                status: pool_status,
-                timestamp,
-            });
-
-            metrics.push(Metric {
-                name: format!("disk_{}_available_gb", pool_name),
-                value: MetricValue::Float(avail_gb),
-                unit: Some("GB".to_string()),
-                description: Some(format!("Available: {}", storage_pool.available)),
-                status: Status::Ok,
-                timestamp,
-            });
-
-            metrics.push(Metric {
-                name: format!("disk_{}_usage_percent", pool_name),
-                value: MetricValue::Float(storage_pool.usage_percent),
-                unit: Some("%".to_string()),
-                description: Some(format!("Usage: {:.1}%", storage_pool.usage_percent)),
-                status: pool_status,
-                timestamp,
-            });
-
-            // Individual drive metrics for this storage pool
-            for drive in &storage_pool.underlying_drives {
-                // Drive health status
-                metrics.push(Metric {
-                    name: format!("disk_{}_{}_health", pool_name, drive.device),
-                    value: MetricValue::String(drive.health_status.clone()),
-                    unit: None,
-                    description: Some(format!("{}: {}", drive.device, drive.health_status)),
-                    status: if drive.health_status == "PASSED" { Status::Ok } 
-                            else if drive.health_status == "FAILED" { Status::Critical }
-                            else { Status::Unknown },
-                    timestamp,
-                });
-
-                // Drive temperature
-                if let Some(temp) = drive.temperature {
-                    let temp_status = self.calculate_temperature_status(
-                        &format!("disk_{}_{}_temperature", pool_name, drive.device),
-                        temp,
-                        status_tracker
-                    );
-                    
-                    metrics.push(Metric {
-                        name: format!("disk_{}_{}_temperature", pool_name, drive.device),
-                        value: MetricValue::Float(temp),
-                        unit: Some("°C".to_string()),
-                        description: Some(format!("{}: {:.0}°C", drive.device, temp)),
-                        status: temp_status,
-                        timestamp,
-                    });
-                }
-
-                // Drive wear level (for SSDs)
-                if let Some(wear) = drive.wear_level {
-                    let wear_status = if wear >= self.config.wear_critical_percent { Status::Critical }
-                                     else if wear >= self.config.wear_warning_percent { Status::Warning }
-                                     else { Status::Ok };
-                    
-                    metrics.push(Metric {
-                        name: format!("disk_{}_{}_wear_percent", pool_name, drive.device),
-                        value: MetricValue::Float(wear),
-                        unit: Some("%".to_string()),
-                        description: Some(format!("{}: {:.0}% wear", drive.device, wear)),
-                        status: wear_status,
-                        timestamp,
-                    });
-                }
-            }
-        }
-
-        // Add storage pool count metric
-        metrics.push(Metric {
-            name: "disk_count".to_string(),
-            value: MetricValue::Integer(storage_pools.len() as i64),
-            unit: None,
-            description: Some(format!("Total storage pools: {}", storage_pools.len())),
-            status: Status::Ok,
-            timestamp: chrono::Utc::now().timestamp() as u64,
-        });
-
-
-        let collection_time = start_time.elapsed();
-        debug!(
-            "Multi-disk collection completed in {:?} with {} metrics",
-            collection_time,
-            metrics.len()
-        );
-
-        Ok(metrics)
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        self.collect_storage_data(agent_data).await
     }
-
 }
+
+/// SMART data for a drive
+#[derive(Debug, Clone)]
+struct SmartData {
+    health: String,
+    temperature_celsius: Option<f32>,
+    wear_percent: Option<f32>,
+}

agent/src/collectors/disk_old.rs

@@ -0,0 +1,1327 @@
+use anyhow::Result;
+use async_trait::async_trait;
+use cm_dashboard_shared::{Metric, MetricValue, Status, StatusTracker, HysteresisThresholds};
+
+use crate::config::DiskConfig;
+use std::process::Command;
+use std::time::Instant;
+use std::fs;
+use tracing::debug;
+
+use super::{Collector, CollectorError};
+
+/// Mount point information from /proc/mounts
+#[derive(Debug, Clone)]
+struct MountInfo {
+    device: String,      // e.g., "/dev/sda1" or "/mnt/disk1:/mnt/disk2"
+    mount_point: String, // e.g., "/", "/srv/media"
+    fs_type: String,     // e.g., "ext4", "xfs", "fuse.mergerfs"
+}
+
+/// Auto-discovered storage topology
+#[derive(Debug, Clone)]
+struct StorageTopology {
+    single_disks: Vec<MountInfo>,
+    mergerfs_pools: Vec<MergerfsPoolInfo>,
+}
+
+/// MergerFS pool information
+#[derive(Debug, Clone)]
+struct MergerfsPoolInfo {
+    mount_point: String,          // e.g., "/srv/media"
+    data_members: Vec<String>,    // e.g., ["/mnt/disk1", "/mnt/disk2"]
+    parity_disks: Vec<String>,    // e.g., ["/mnt/parity"]
+}
+
+/// Information about a storage pool (mount point with underlying drives)
+#[derive(Debug, Clone)]
+struct StoragePool {
+    name: String,            // e.g., "steampool", "root"
+    mount_point: String,     // e.g., "/mnt/steampool", "/"
+    filesystem: String,      // e.g., "mergerfs", "ext4", "zfs", "btrfs"
+    pool_type: StoragePoolType, // Enhanced pool type with configuration
+    size: String,            // e.g., "2.5TB"
+    used: String,            // e.g., "2.1TB"
+    available: String,       // e.g., "400GB"
+    usage_percent: f32,      // e.g., 85.0
+    underlying_drives: Vec<DriveInfo>, // Individual physical drives
+    pool_health: PoolHealth, // Overall pool health status
+}
+
+/// Enhanced storage pool types with specific configurations
+#[derive(Debug, Clone)]
+enum StoragePoolType {
+    Single,                    // Traditional single disk (legacy)
+    PhysicalDrive {           // Physical drive with multiple filesystems
+        filesystems: Vec<String>,     // Mount points on this drive
+    },
+    MergerfsPool {            // MergerFS with optional parity
+        data_disks: Vec<String>,      // Member disk names (sdb, sdd)
+        parity_disks: Vec<String>,    // Parity disk names (sdc)
+    },
+    #[allow(dead_code)]
+    RaidArray {               // Hardware RAID (future)
+        level: String,               // "RAID1", "RAID5", etc.
+        member_disks: Vec<String>,   
+        spare_disks: Vec<String>,
+    },
+    #[allow(dead_code)]
+    ZfsPool {                 // ZFS pool (future)
+        pool_name: String,
+        vdevs: Vec<String>,
+    }
+}
+
+/// Pool health status for redundant storage
+#[derive(Debug, Clone, Copy, PartialEq)]
+enum PoolHealth {
+    Healthy,           // All drives OK, parity current
+    Degraded,          // One drive failed or parity outdated, still functional
+    Critical,          // Multiple failures, data at risk
+    #[allow(dead_code)]
+    Rebuilding,        // Actively rebuilding/scrubbing (future: SnapRAID status integration)
+    Unknown,           // Cannot determine status
+}
+
+/// Information about an individual physical drive
+#[derive(Debug, Clone)]
+struct DriveInfo {
+    device: String,          // e.g., "sda", "nvme0n1"
+    health_status: String,   // e.g., "PASSED", "FAILED"
+    temperature: Option<f32>, // e.g., 45.0°C
+    wear_level: Option<f32>, // e.g., 12.0% (for SSDs)
+}
+
+/// Disk usage collector for monitoring filesystem sizes
+pub struct DiskCollector {
+    config: DiskConfig,
+    temperature_thresholds: HysteresisThresholds,
+    detected_devices: std::collections::HashMap<String, Vec<String>>, // mount_point -> devices
+    storage_topology: Option<StorageTopology>, // Auto-discovered storage layout
+}
+
+impl DiskCollector {
+    pub fn new(config: DiskConfig) -> Self {
+        // Create hysteresis thresholds for disk temperature from config
+        let temperature_thresholds = HysteresisThresholds::with_custom_gaps(
+            config.temperature_warning_celsius,
+            5.0,  // 5°C gap for recovery
+            config.temperature_critical_celsius,
+            5.0,  // 5°C gap for recovery
+        );
+        
+        // Perform auto-discovery of storage topology
+        let storage_topology = match Self::auto_discover_storage() {
+            Ok(topology) => {
+                debug!("Auto-discovered storage topology: {} single disks, {} mergerfs pools", 
+                       topology.single_disks.len(), topology.mergerfs_pools.len());
+                Some(topology)
+            }
+            Err(e) => {
+                debug!("Failed to auto-discover storage topology: {}", e);
+                None
+            }
+        };
+        
+        // Detect devices for discovered storage
+        let mut detected_devices = std::collections::HashMap::new();
+        if let Some(ref topology) = storage_topology {
+            // Add single disks
+            for disk in &topology.single_disks {
+                if let Ok(devices) = Self::detect_device_for_mount_point_static(&disk.mount_point) {
+                    detected_devices.insert(disk.mount_point.clone(), devices);
+                }
+            }
+            
+            // Add mergerfs pools and their members
+            for pool in &topology.mergerfs_pools {
+                // Detect devices for the pool itself
+                if let Ok(devices) = Self::detect_device_for_mount_point_static(&pool.mount_point) {
+                    detected_devices.insert(pool.mount_point.clone(), devices);
+                }
+                
+                // Detect devices for member disks
+                for member in &pool.data_members {
+                    if let Ok(devices) = Self::detect_device_for_mount_point_static(member) {
+                        detected_devices.insert(member.clone(), devices);
+                    }
+                }
+                
+                // Detect devices for parity disks
+                for parity in &pool.parity_disks {
+                    if let Ok(devices) = Self::detect_device_for_mount_point_static(parity) {
+                        detected_devices.insert(parity.clone(), devices);
+                    }
+                }
+            }
+        } else {
+            // Fallback: use legacy filesystem config detection
+            for fs_config in &config.filesystems {
+                if fs_config.monitor {
+                    if let Ok(devices) = Self::detect_device_for_mount_point_static(&fs_config.mount_point) {
+                        detected_devices.insert(fs_config.mount_point.clone(), devices);
+                    }
+                }
+            }
+        }
+        
+        Self { 
+            config,
+            temperature_thresholds,
+            detected_devices,
+            storage_topology,
+        }
+    }
+
+    /// Auto-discover storage topology by parsing system information
+    fn auto_discover_storage() -> Result<StorageTopology> {
+        let mounts = Self::parse_proc_mounts()?;
+        let mut single_disks = Vec::new();
+        let mut mergerfs_pools = Vec::new();
+        
+        // Filter out unwanted filesystem types and mount points
+        let exclude_fs_types = ["tmpfs", "devtmpfs", "sysfs", "proc", "cgroup", "cgroup2", "devpts"];
+        let exclude_mount_prefixes = ["/proc", "/sys", "/dev", "/tmp", "/run"];
+        
+        for mount in mounts {
+            // Skip excluded filesystem types
+            if exclude_fs_types.contains(&mount.fs_type.as_str()) {
+                continue;
+            }
+            
+            // Skip excluded mount point prefixes
+            if exclude_mount_prefixes.iter().any(|prefix| mount.mount_point.starts_with(prefix)) {
+                continue;
+            }
+            
+            match mount.fs_type.as_str() {
+                "fuse.mergerfs" => {
+                    // Parse mergerfs pool
+                    let data_members = Self::parse_mergerfs_sources(&mount.device);
+                    let parity_disks = Self::detect_parity_disks(&data_members);
+                    
+                    mergerfs_pools.push(MergerfsPoolInfo {
+                        mount_point: mount.mount_point.clone(),
+                        data_members,
+                        parity_disks,
+                    });
+                    
+                    debug!("Discovered mergerfs pool at {}", mount.mount_point);
+                }
+                "ext4" | "xfs" | "btrfs" | "ntfs" | "vfat" => {
+                    // Check if this mount is part of a mergerfs pool
+                    let is_mergerfs_member = mergerfs_pools.iter()
+                        .any(|pool| pool.data_members.contains(&mount.mount_point) || 
+                                   pool.parity_disks.contains(&mount.mount_point));
+                    
+                    if !is_mergerfs_member {
+                        debug!("Discovered single disk at {}", mount.mount_point);
+                        single_disks.push(mount);
+                    }
+                }
+                _ => {
+                    debug!("Skipping unsupported filesystem type: {}", mount.fs_type);
+                }
+            }
+        }
+        
+        Ok(StorageTopology {
+            single_disks,
+            mergerfs_pools,
+        })
+    }
+
+    /// Parse /proc/mounts to get all mount information
+    fn parse_proc_mounts() -> Result<Vec<MountInfo>> {
+        let mounts_content = fs::read_to_string("/proc/mounts")?;
+        let mut mounts = Vec::new();
+        
+        for line in mounts_content.lines() {
+            let parts: Vec<&str> = line.split_whitespace().collect();
+            if parts.len() >= 3 {
+                mounts.push(MountInfo {
+                    device: parts[0].to_string(),
+                    mount_point: parts[1].to_string(),
+                    fs_type: parts[2].to_string(),
+                });
+            }
+        }
+        
+        Ok(mounts)
+    }
+
+    /// Parse mergerfs source string to extract member paths
+    fn parse_mergerfs_sources(source: &str) -> Vec<String> {
+        // MergerFS source format: "/mnt/disk1:/mnt/disk2:/mnt/disk3"
+        source.split(':')
+            .map(|s| s.trim().to_string())
+            .filter(|s| !s.is_empty())
+            .collect()
+    }
+
+    /// Detect potential parity disks based on data member heuristics
+    fn detect_parity_disks(data_members: &[String]) -> Vec<String> {
+        let mut parity_disks = Vec::new();
+        
+        // Heuristic 1: Look for mount points with "parity" in the name
+        if let Ok(mounts) = Self::parse_proc_mounts() {
+            for mount in mounts {
+                if mount.mount_point.to_lowercase().contains("parity") && 
+                   (mount.fs_type == "xfs" || mount.fs_type == "ext4") {
+                    debug!("Detected parity disk by name: {}", mount.mount_point);
+                    parity_disks.push(mount.mount_point);
+                }
+            }
+        }
+        
+        // Heuristic 2: Look for sequential device pattern
+        // If data members are /mnt/disk1, /mnt/disk2, look for /mnt/disk* that's not in data
+        if parity_disks.is_empty() {
+            if let Some(pattern) = Self::extract_mount_pattern(data_members) {
+                if let Ok(mounts) = Self::parse_proc_mounts() {
+                    for mount in mounts {
+                        if mount.mount_point.starts_with(&pattern) && 
+                           !data_members.contains(&mount.mount_point) &&
+                           (mount.fs_type == "xfs" || mount.fs_type == "ext4") {
+                            debug!("Detected parity disk by pattern: {}", mount.mount_point);
+                            parity_disks.push(mount.mount_point);
+                        }
+                    }
+                }
+            }
+        }
+        
+        parity_disks
+    }
+
+    /// Extract common mount point pattern from data members
+    fn extract_mount_pattern(data_members: &[String]) -> Option<String> {
+        if data_members.is_empty() {
+            return None;
+        }
+        
+        // Find common prefix (e.g., "/mnt/disk" from "/mnt/disk1", "/mnt/disk2")
+        let first = &data_members[0];
+        if let Some(last_slash) = first.rfind('/') {
+            let base = &first[..last_slash + 1]; // Include the slash
+            
+            // Check if all members share this base
+            if data_members.iter().all(|member| member.starts_with(base)) {
+                return Some(base.to_string());
+            }
+        }
+        
+        None
+    }
+
+    /// Calculate disk temperature status using hysteresis thresholds
+    fn calculate_temperature_status(&self, metric_name: &str, temperature: f32, status_tracker: &mut StatusTracker) -> Status {
+        status_tracker.calculate_with_hysteresis(metric_name, temperature, &self.temperature_thresholds)
+    }
+
+
+    /// Get storage pools using auto-discovered topology or fallback to configuration
+    fn get_configured_storage_pools(&self) -> Result<Vec<StoragePool>> {
+        if let Some(ref topology) = self.storage_topology {
+            self.get_auto_discovered_storage_pools(topology)
+        } else {
+            self.get_legacy_configured_storage_pools()
+        }
+    }
+
+    /// Get storage pools from auto-discovered topology
+    fn get_auto_discovered_storage_pools(&self, topology: &StorageTopology) -> Result<Vec<StoragePool>> {
+        let mut storage_pools = Vec::new();
+
+        // Group single disks by physical drive for unified pool display
+        let grouped_disks = self.group_filesystems_by_physical_drive(&topology.single_disks)?;
+
+        // Process grouped single disks (each physical drive becomes a pool)
+        for (drive_name, filesystems) in grouped_disks {
+            // Create a unified pool for this physical drive
+            let pool = self.create_physical_drive_pool(&drive_name, &filesystems)?;
+            storage_pools.push(pool);
+        }
+
+        // IMPORTANT: Do not create individual filesystem pools when using auto-discovery
+        // All single disk filesystems should be grouped into physical drive pools above
+
+        // Process mergerfs pools (these remain as logical pools)
+        for pool_info in &topology.mergerfs_pools {
+            if let Ok((total_bytes, used_bytes)) = self.get_filesystem_info(&pool_info.mount_point) {
+                let available_bytes = total_bytes - used_bytes;
+                let usage_percent = if total_bytes > 0 {
+                    (used_bytes as f64 / total_bytes as f64) * 100.0
+                } else { 0.0 };
+
+                let size = self.bytes_to_human_readable(total_bytes);
+                let used = self.bytes_to_human_readable(used_bytes);
+                let available = self.bytes_to_human_readable(available_bytes);
+
+                // Collect all member and parity drives
+                let mut all_drives = Vec::new();
+                
+                // Add data member drives
+                for member in &pool_info.data_members {
+                    if let Some(devices) = self.detected_devices.get(member) {
+                        all_drives.extend(devices.clone());
+                    }
+                }
+                
+                // Add parity drives
+                for parity in &pool_info.parity_disks {
+                    if let Some(devices) = self.detected_devices.get(parity) {
+                        all_drives.extend(devices.clone());
+                    }
+                }
+
+                let underlying_drives = self.get_drive_info_for_devices(&all_drives)?;
+                
+                // Calculate pool health
+                let pool_health = self.calculate_mergerfs_pool_health(&pool_info.data_members, &pool_info.parity_disks, &underlying_drives);
+
+                // Generate pool name from mount point
+                let name = pool_info.mount_point.trim_start_matches('/').replace('/', "_");
+
+                storage_pools.push(StoragePool {
+                    name,
+                    mount_point: pool_info.mount_point.clone(),
+                    filesystem: "fuse.mergerfs".to_string(),
+                    pool_type: StoragePoolType::MergerfsPool {
+                        data_disks: pool_info.data_members.iter()
+                            .filter_map(|member| self.detected_devices.get(member).and_then(|devices| devices.first().cloned()))
+                            .collect(),
+                        parity_disks: pool_info.parity_disks.iter()
+                            .filter_map(|parity| self.detected_devices.get(parity).and_then(|devices| devices.first().cloned()))
+                            .collect(),
+                    },
+                    size,
+                    used,
+                    available,
+                    usage_percent: usage_percent as f32,
+                    underlying_drives,
+                    pool_health,
+                });
+
+                debug!("Auto-discovered mergerfs pool: {} with {} data + {} parity disks", 
+                       pool_info.mount_point, pool_info.data_members.len(), pool_info.parity_disks.len());
+            }
+        }
+
+        Ok(storage_pools)
+    }
+
+    /// Group filesystems by their backing physical drive
+    fn group_filesystems_by_physical_drive(&self, filesystems: &[MountInfo]) -> Result<std::collections::HashMap<String, Vec<MountInfo>>> {
+        let mut grouped = std::collections::HashMap::new();
+        
+        for fs in filesystems {
+            // Get the physical drive name for this mount point
+            if let Some(devices) = self.detected_devices.get(&fs.mount_point) {
+                if let Some(device_name) = devices.first() {
+                    // Extract base drive name from detected device
+                    let drive_name = Self::extract_base_device(device_name)
+                        .unwrap_or_else(|| device_name.clone());
+                    
+                    debug!("Grouping filesystem {} (device: {}) under drive: {}", 
+                           fs.mount_point, device_name, drive_name);
+                    
+                    grouped.entry(drive_name).or_insert_with(Vec::new).push(fs.clone());
+                }
+            }
+        }
+        
+        debug!("Filesystem grouping result: {} drives with filesystems: {:?}", 
+               grouped.len(), 
+               grouped.keys().collect::<Vec<_>>());
+        
+        Ok(grouped)
+    }
+
+    /// Create a physical drive pool containing multiple filesystems
+    fn create_physical_drive_pool(&self, drive_name: &str, filesystems: &[MountInfo]) -> Result<StoragePool> {
+        if filesystems.is_empty() {
+            return Err(anyhow::anyhow!("No filesystems for drive {}", drive_name));
+        }
+
+        // Calculate total usage across all filesystems on this drive
+        let mut total_capacity = 0u64;
+        let mut total_used = 0u64;
+        
+        for fs in filesystems {
+            if let Ok((capacity, used)) = self.get_filesystem_info(&fs.mount_point) {
+                total_capacity += capacity;
+                total_used += used;
+            }
+        }
+
+        let total_available = total_capacity.saturating_sub(total_used);
+        let usage_percent = if total_capacity > 0 {
+            (total_used as f64 / total_capacity as f64) * 100.0
+        } else { 0.0 };
+
+        // Get drive information for SMART data
+        let device_names = vec![drive_name.to_string()];
+        let underlying_drives = self.get_drive_info_for_devices(&device_names)?;
+
+        // Collect filesystem mount points for this drive
+        let filesystem_mount_points: Vec<String> = filesystems.iter()
+            .map(|fs| fs.mount_point.clone())
+            .collect();
+
+        Ok(StoragePool {
+            name: drive_name.to_string(),
+            mount_point: format!("(physical drive)"), // Special marker for physical drives
+            filesystem: "physical".to_string(),
+            pool_type: StoragePoolType::PhysicalDrive {
+                filesystems: filesystem_mount_points,
+            },
+            size: self.bytes_to_human_readable(total_capacity),
+            used: self.bytes_to_human_readable(total_used),
+            available: self.bytes_to_human_readable(total_available),
+            usage_percent: usage_percent as f32,
+            pool_health: if underlying_drives.iter().all(|d| d.health_status == "PASSED") {
+                PoolHealth::Healthy
+            } else {
+                PoolHealth::Critical
+            },
+            underlying_drives,
+        })
+    }
+
+    /// Calculate pool health specifically for mergerfs pools
+    fn calculate_mergerfs_pool_health(&self, data_members: &[String], parity_disks: &[String], drives: &[DriveInfo]) -> PoolHealth {
+        // Get device names for data and parity drives
+        let mut data_device_names = Vec::new();
+        let mut parity_device_names = Vec::new();
+        
+        for member in data_members {
+            if let Some(devices) = self.detected_devices.get(member) {
+                data_device_names.extend(devices.clone());
+            }
+        }
+        
+        for parity in parity_disks {
+            if let Some(devices) = self.detected_devices.get(parity) {
+                parity_device_names.extend(devices.clone());
+            }
+        }
+        
+        let failed_data = drives.iter()
+            .filter(|d| data_device_names.contains(&d.device) && d.health_status != "PASSED")
+            .count();
+        let failed_parity = drives.iter()
+            .filter(|d| parity_device_names.contains(&d.device) && d.health_status != "PASSED")
+            .count();
+        
+        match (failed_data, failed_parity) {
+            (0, 0) => PoolHealth::Healthy,
+            (1, 0) => PoolHealth::Degraded,  // Can recover with parity
+            (0, 1) => PoolHealth::Degraded,  // Lost parity protection
+            _ => PoolHealth::Critical,       // Multiple failures
+        }
+    }
+
+    /// Fallback to legacy configuration-based storage pools  
+    fn get_legacy_configured_storage_pools(&self) -> Result<Vec<StoragePool>> {
+        let mut storage_pools = Vec::new();
+        let mut processed_pools = std::collections::HashSet::new();
+
+        // Legacy implementation: use filesystem configuration
+        for fs_config in &self.config.filesystems {
+            if !fs_config.monitor {
+                continue;
+            }
+
+            let (pool_type, skip_in_single_mode) = self.determine_pool_type(&fs_config.storage_type);
+            
+            // Skip member disks if they're part of a pool
+            if skip_in_single_mode {
+                continue;
+            }
+
+            // Check if this pool was already processed (in case of multiple member disks)
+            let pool_key = match &pool_type {
+                StoragePoolType::MergerfsPool { .. } => {
+                    // For mergerfs pools, use the main mount point
+                    if fs_config.fs_type == "fuse.mergerfs" {
+                        fs_config.mount_point.clone()
+                    } else {
+                        continue; // Skip member disks
+                    }
+                }
+                _ => fs_config.mount_point.clone()
+            };
+
+            if processed_pools.contains(&pool_key) {
+                continue;
+            }
+            processed_pools.insert(pool_key.clone());
+
+            // Get filesystem stats for the mount point
+            match self.get_filesystem_info(&fs_config.mount_point) {
+                Ok((total_bytes, used_bytes)) => {
+                    let available_bytes = total_bytes - used_bytes;
+                    let usage_percent = if total_bytes > 0 {
+                        (used_bytes as f64 / total_bytes as f64) * 100.0
+                    } else { 0.0 };
+
+                    // Convert bytes to human-readable format
+                    let size = self.bytes_to_human_readable(total_bytes);
+                    let used = self.bytes_to_human_readable(used_bytes);
+                    let available = self.bytes_to_human_readable(available_bytes);
+
+                    // Get underlying drives based on pool type
+                    let underlying_drives = self.get_pool_drives(&pool_type, &fs_config.mount_point)?;
+                    
+                    // Calculate pool health
+                    let pool_health = self.calculate_pool_health(&pool_type, &underlying_drives);
+                    let drive_count = underlying_drives.len();
+
+                    storage_pools.push(StoragePool {
+                        name: fs_config.name.clone(),
+                        mount_point: fs_config.mount_point.clone(),
+                        filesystem: fs_config.fs_type.clone(),
+                        pool_type: pool_type.clone(),
+                        size,
+                        used,
+                        available,
+                        usage_percent: usage_percent as f32,
+                        underlying_drives,
+                        pool_health,
+                    });
+
+                    debug!(
+                        "Legacy configured storage pool '{}' ({:?}) at {} with {} drives, health: {:?}",
+                        fs_config.name, pool_type, fs_config.mount_point, drive_count, pool_health
+                    );
+                }
+                Err(e) => {
+                    debug!(
+                        "Failed to get filesystem info for storage pool '{}': {}",
+                        fs_config.name, e
+                    );
+                }
+            }
+        }
+
+        Ok(storage_pools)
+    }
+
+    /// Determine the storage pool type from configuration
+    fn determine_pool_type(&self, storage_type: &str) -> (StoragePoolType, bool) {
+        match storage_type {
+            "single" => (StoragePoolType::Single, false),
+            "mergerfs_pool" | "mergerfs" => {
+                // Find associated member disks
+                let data_disks = self.find_pool_member_disks("mergerfs_member");
+                let parity_disks = self.find_pool_member_disks("parity");
+                (StoragePoolType::MergerfsPool { data_disks, parity_disks }, false)
+            }
+            "mergerfs_member" => (StoragePoolType::Single, true), // Skip, part of pool
+            "parity" => (StoragePoolType::Single, true), // Skip, part of pool  
+            "raid1" | "raid5" | "raid6" => {
+                let member_disks = self.find_pool_member_disks(&format!("{}_member", storage_type));
+                (StoragePoolType::RaidArray { 
+                    level: storage_type.to_uppercase(), 
+                    member_disks, 
+                    spare_disks: Vec::new() 
+                }, false)
+            }
+            _ => (StoragePoolType::Single, false) // Default to single
+        }
+    }
+
+    /// Find member disks for a specific storage type
+    fn find_pool_member_disks(&self, member_type: &str) -> Vec<String> {
+        let mut member_disks = Vec::new();
+        
+        for fs_config in &self.config.filesystems {
+            if fs_config.storage_type == member_type && fs_config.monitor {
+                // Get device names for this mount point
+                if let Some(devices) = self.detected_devices.get(&fs_config.mount_point) {
+                    member_disks.extend(devices.clone());
+                }
+            }
+        }
+        
+        member_disks
+    }
+
+    /// Get drive information for a specific pool type
+    fn get_pool_drives(&self, pool_type: &StoragePoolType, mount_point: &str) -> Result<Vec<DriveInfo>> {
+        match pool_type {
+            StoragePoolType::Single => {
+                // Single disk - use detected devices for this mount point
+                let device_names = self.detected_devices.get(mount_point).cloned().unwrap_or_default();
+                self.get_drive_info_for_devices(&device_names)
+            }
+            StoragePoolType::PhysicalDrive { .. } => {
+                // Physical drive - get drive info for the drive directly (mount_point not used)
+                let device_names = vec![mount_point.to_string()];
+                self.get_drive_info_for_devices(&device_names)
+            }
+            StoragePoolType::MergerfsPool { data_disks, parity_disks } => {
+                // Mergerfs pool - collect all member drives
+                let mut all_disks = data_disks.clone();
+                all_disks.extend(parity_disks.clone());
+                self.get_drive_info_for_devices(&all_disks)
+            }
+            StoragePoolType::RaidArray { member_disks, spare_disks, .. } => {
+                // RAID array - collect member and spare drives
+                let mut all_disks = member_disks.clone();
+                all_disks.extend(spare_disks.clone());
+                self.get_drive_info_for_devices(&all_disks)
+            }
+            StoragePoolType::ZfsPool { .. } => {
+                // ZFS pool - use detected devices (future implementation)
+                let device_names = self.detected_devices.get(mount_point).cloned().unwrap_or_default();
+                self.get_drive_info_for_devices(&device_names)
+            }
+        }
+    }
+
+    /// Calculate pool health based on drive status and pool type
+    fn calculate_pool_health(&self, pool_type: &StoragePoolType, drives: &[DriveInfo]) -> PoolHealth {
+        match pool_type {
+            StoragePoolType::Single => {
+                // Single disk - health is just the drive health
+                if drives.is_empty() {
+                    PoolHealth::Unknown
+                } else if drives.iter().all(|d| d.health_status == "PASSED") {
+                    PoolHealth::Healthy
+                } else {
+                    PoolHealth::Critical
+                }
+            }
+            StoragePoolType::PhysicalDrive { .. } => {
+                // Physical drive - health is just the drive health (similar to Single)
+                if drives.is_empty() {
+                    PoolHealth::Unknown
+                } else if drives.iter().all(|d| d.health_status == "PASSED") {
+                    PoolHealth::Healthy
+                } else {
+                    PoolHealth::Critical
+                }
+            }
+            StoragePoolType::MergerfsPool { data_disks, parity_disks } => {
+                let failed_data = drives.iter()
+                    .filter(|d| data_disks.contains(&d.device) && d.health_status != "PASSED")
+                    .count();
+                let failed_parity = drives.iter()
+                    .filter(|d| parity_disks.contains(&d.device) && d.health_status != "PASSED")
+                    .count();
+                
+                match (failed_data, failed_parity) {
+                    (0, 0) => PoolHealth::Healthy,
+                    (1, 0) => PoolHealth::Degraded,  // Can recover with parity
+                    (0, 1) => PoolHealth::Degraded,  // Lost parity protection
+                    _ => PoolHealth::Critical,       // Multiple failures
+                }
+            }
+            StoragePoolType::RaidArray { level, .. } => {
+                let failed_drives = drives.iter().filter(|d| d.health_status != "PASSED").count();
+                
+                // Basic RAID health logic (can be enhanced per RAID level)
+                match failed_drives {
+                    0 => PoolHealth::Healthy,
+                    1 if level.contains('1') || level.contains('5') || level.contains('6') => PoolHealth::Degraded,
+                    _ => PoolHealth::Critical,
+                }
+            }
+            StoragePoolType::ZfsPool { .. } => {
+                // ZFS health would require zpool status parsing (future)
+                if drives.iter().all(|d| d.health_status == "PASSED") {
+                    PoolHealth::Healthy
+                } else {
+                    PoolHealth::Degraded
+                }
+            }
+        }
+    }
+
+    /// Get drive information for a list of device names
+    fn get_drive_info_for_devices(&self, device_names: &[String]) -> Result<Vec<DriveInfo>> {
+        let mut drives = Vec::new();
+        
+        for device_name in device_names {
+            let device_path = format!("/dev/{}", device_name);
+            
+            // Get SMART data for this drive
+            let (health_status, temperature, wear_level) = self.get_smart_data(&device_path);
+            
+            drives.push(DriveInfo {
+                device: device_name.clone(),
+                health_status: health_status.clone(),
+                temperature,
+                wear_level,
+            });
+            
+            debug!(
+                "Drive info for {}: health={}, temp={:?}°C, wear={:?}%",
+                device_name, health_status, temperature, wear_level
+            );
+        }
+        
+        Ok(drives)
+    }
+
+    /// Get SMART data for a drive (health, temperature, wear level)
+    fn get_smart_data(&self, device_path: &str) -> (String, Option<f32>, Option<f32>) {
+        // Try to get SMART data using smartctl
+        let output = Command::new("sudo")
+            .arg("smartctl")
+            .arg("-a")
+            .arg(device_path)
+            .output();
+            
+        match output {
+            Ok(result) if result.status.success() => {
+                let stdout = String::from_utf8_lossy(&result.stdout);
+                
+                // Parse health status
+                let health = if stdout.contains("PASSED") {
+                    "PASSED".to_string()
+                } else if stdout.contains("FAILED") {
+                    "FAILED".to_string()
+                } else {
+                    "UNKNOWN".to_string()
+                };
+                
+                // Parse temperature (look for various temperature indicators)
+                let temperature = self.parse_temperature_from_smart(&stdout);
+                
+                // Parse wear level (for SSDs)
+                let wear_level = self.parse_wear_level_from_smart(&stdout);
+                
+                (health, temperature, wear_level)
+            }
+            _ => {
+                debug!("Failed to get SMART data for {}", device_path);
+                ("UNKNOWN".to_string(), None, None)
+            }
+        }
+    }
+
+    /// Parse temperature from SMART output
+    fn parse_temperature_from_smart(&self, smart_output: &str) -> Option<f32> {
+        for line in smart_output.lines() {
+            // Look for temperature in various formats
+            if line.contains("Temperature_Celsius") || line.contains("Temperature") {
+                let parts: Vec<&str> = line.split_whitespace().collect();
+                if parts.len() >= 10 {
+                    if let Ok(temp) = parts[9].parse::<f32>() {
+                        return Some(temp);
+                    }
+                }
+            }
+            // NVMe drives might show temperature differently
+            if line.contains("temperature:") {
+                if let Some(temp_part) = line.split("temperature:").nth(1) {
+                    if let Some(temp_str) = temp_part.split_whitespace().next() {
+                        if let Ok(temp) = temp_str.parse::<f32>() {
+                            return Some(temp);
+                        }
+                    }
+                }
+            }
+        }
+        None
+    }
+
+    /// Parse wear level from SMART output (SSD wear leveling)
+    /// Supports both NVMe and SATA SSD wear indicators
+    fn parse_wear_level_from_smart(&self, smart_output: &str) -> Option<f32> {
+        for line in smart_output.lines() {
+            let line = line.trim();
+            
+            // NVMe drives - direct percentage used
+            if line.contains("Percentage Used:") {
+                if let Some(wear_part) = line.split("Percentage Used:").nth(1) {
+                    if let Some(wear_str) = wear_part.split('%').next() {
+                        if let Ok(wear) = wear_str.trim().parse::<f32>() {
+                            return Some(wear);
+                        }
+                    }
+                }
+            }
+            
+            // SATA SSD attributes - parse SMART table format
+            // Format: ID ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
+            let parts: Vec<&str> = line.split_whitespace().collect();
+            if parts.len() >= 10 {
+                // SSD Life Left / Percent Lifetime Remaining (higher = less wear)
+                if line.contains("SSD_Life_Left") || line.contains("Percent_Lifetime_Remain") {
+                    if let Ok(remaining) = parts[3].parse::<f32>() { // VALUE column
+                        return Some(100.0 - remaining); // Convert remaining to used
+                    }
+                }
+                
+                // Media Wearout Indicator (lower = more wear, normalize to 0-100)
+                if line.contains("Media_Wearout_Indicator") {
+                    if let Ok(remaining) = parts[3].parse::<f32>() { // VALUE column
+                        return Some(100.0 - remaining); // Convert remaining to used
+                    }
+                }
+                
+                // Wear Leveling Count (higher = less wear, but varies by manufacturer)
+                if line.contains("Wear_Leveling_Count") {
+                    if let Ok(wear_count) = parts[3].parse::<f32>() { // VALUE column
+                        // Most SSDs: 100 = new, decreases with wear
+                        if wear_count <= 100.0 {
+                            return Some(100.0 - wear_count);
+                        }
+                    }
+                }
+                
+                // Total LBAs Written - calculate against typical endurance if available
+                // This is more complex and manufacturer-specific, so we skip for now
+            }
+        }
+        None
+    }
+
+    /// Convert bytes to human-readable format
+    fn bytes_to_human_readable(&self, bytes: u64) -> String {
+        const UNITS: &[&str] = &["B", "K", "M", "G", "T"];
+        let mut size = bytes as f64;
+        let mut unit_index = 0;
+
+        while size >= 1024.0 && unit_index < UNITS.len() - 1 {
+            size /= 1024.0;
+            unit_index += 1;
+        }
+
+        if unit_index == 0 {
+            format!("{:.0}{}", size, UNITS[unit_index])
+        } else {
+            format!("{:.1}{}", size, UNITS[unit_index])
+        }
+    }
+
+    /// Convert bytes to gigabytes
+    fn bytes_to_gb(&self, bytes: u64) -> f32 {
+        bytes as f32 / (1024.0 * 1024.0 * 1024.0)
+    }
+
+    /// Detect device backing a mount point using lsblk (static version for startup)
+    fn detect_device_for_mount_point_static(mount_point: &str) -> Result<Vec<String>> {
+        let output = Command::new("lsblk")
+            .args(&["-n", "-o", "NAME,MOUNTPOINT"])
+            .output()?;
+        
+        if !output.status.success() {
+            return Ok(Vec::new());
+        }
+        
+        let output_str = String::from_utf8_lossy(&output.stdout);
+        
+        for line in output_str.lines() {
+            let parts: Vec<&str> = line.split_whitespace().collect();
+            if parts.len() >= 2 && parts[1] == mount_point {
+                // Remove tree symbols and extract device name (e.g., "├─nvme0n1p2" -> "nvme0n1p2")
+                let device_name = parts[0]
+                    .trim_start_matches('├')
+                    .trim_start_matches('└')
+                    .trim_start_matches('─')
+                    .trim();
+                
+                // Extract base device name (e.g., "nvme0n1p2" -> "nvme0n1")
+                if let Some(base_device) = Self::extract_base_device(device_name) {
+                    return Ok(vec![base_device]);
+                }
+            }
+        }
+        
+        Ok(Vec::new())
+    }
+
+    /// Extract base device name from partition (e.g., "nvme0n1p2" -> "nvme0n1", "sda1" -> "sda")
+    fn extract_base_device(device_name: &str) -> Option<String> {
+        // Handle NVMe devices (nvme0n1p1 -> nvme0n1)
+        if device_name.starts_with("nvme") {
+            if let Some(p_pos) = device_name.find('p') {
+                return Some(device_name[..p_pos].to_string());
+            }
+        }
+        
+        // Handle traditional devices (sda1 -> sda)
+        if device_name.len() > 1 {
+            let chars: Vec<char> = device_name.chars().collect();
+            let mut end_idx = chars.len();
+            
+            // Find where the device name ends and partition number begins
+            for (i, &c) in chars.iter().enumerate().rev() {
+                if !c.is_ascii_digit() {
+                    end_idx = i + 1;
+                    break;
+                }
+            }
+            
+            if end_idx > 0 && end_idx < chars.len() {
+                return Some(chars[..end_idx].iter().collect());
+            }
+        }
+        
+        // If no partition detected, return as-is
+        Some(device_name.to_string())
+    }
+
+
+    /// Get filesystem info using df command
+    fn get_filesystem_info(&self, path: &str) -> Result<(u64, u64)> {
+        let output = Command::new("df")
+            .arg("--block-size=1")
+            .arg(path)
+            .output()?;
+
+        if !output.status.success() {
+            return Err(anyhow::anyhow!("df command failed for {}", path));
+        }
+
+        let output_str = String::from_utf8(output.stdout)?;
+        let lines: Vec<&str> = output_str.lines().collect();
+
+        if lines.len() < 2 {
+            return Err(anyhow::anyhow!("Unexpected df output format"));
+        }
+
+        let fields: Vec<&str> = lines[1].split_whitespace().collect();
+        if fields.len() < 4 {
+            return Err(anyhow::anyhow!("Unexpected df fields count"));
+        }
+
+        let total_bytes = fields[1].parse::<u64>()?;
+        let used_bytes = fields[2].parse::<u64>()?;
+
+        Ok((total_bytes, used_bytes))
+    }
+
+
+    /// Parse size string (e.g., "120G", "45M") to GB value
+    fn parse_size_to_gb(&self, size_str: &str) -> f32 {
+        let size_str = size_str.trim();
+        if size_str.is_empty() || size_str == "-" {
+            return 0.0;
+        }
+
+        // Extract numeric part and unit
+        let (num_str, unit) = if let Some(last_char) = size_str.chars().last() {
+            if last_char.is_alphabetic() {
+                let num_part = &size_str[..size_str.len() - 1];
+                let unit_part = &size_str[size_str.len() - 1..];
+                (num_part, unit_part)
+            } else {
+                (size_str, "")
+            }
+        } else {
+            (size_str, "")
+        };
+
+        let number: f32 = num_str.parse().unwrap_or(0.0);
+
+        match unit.to_uppercase().as_str() {
+            "T" | "TB" => number * 1024.0,
+            "G" | "GB" => number,
+            "M" | "MB" => number / 1024.0,
+            "K" | "KB" => number / (1024.0 * 1024.0),
+            "B" | "" => number / (1024.0 * 1024.0 * 1024.0),
+            _ => number, // Assume GB if unknown unit
+        }
+    }
+}
+
+#[async_trait]
+impl Collector for DiskCollector {
+
+    async fn collect(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
+        let start_time = Instant::now();
+        debug!("Collecting storage pool and individual drive metrics");
+
+        let mut metrics = Vec::new();
+
+        // Get configured storage pools with individual drive data
+        let storage_pools = match self.get_configured_storage_pools() {
+            Ok(pools) => {
+                debug!("Found {} storage pools", pools.len());
+                pools
+            }
+            Err(e) => {
+                debug!("Failed to get storage pools: {}", e);
+                Vec::new()
+            }
+        };
+
+        // Generate metrics for each storage pool and its underlying drives
+        for storage_pool in &storage_pools {
+            let timestamp = chrono::Utc::now().timestamp() as u64;
+
+            // Storage pool overall metrics
+            let pool_name = &storage_pool.name;
+            
+            // Parse size strings to get actual values for calculations
+            let size_gb = self.parse_size_to_gb(&storage_pool.size);
+            let used_gb = self.parse_size_to_gb(&storage_pool.used);
+            let avail_gb = self.parse_size_to_gb(&storage_pool.available);
+
+            // Calculate status based on configured thresholds and pool health
+            let usage_status = if storage_pool.usage_percent >= self.config.usage_critical_percent {
+                Status::Critical
+            } else if storage_pool.usage_percent >= self.config.usage_warning_percent {
+                Status::Warning
+            } else {
+                Status::Ok
+            };
+
+            let pool_status = match storage_pool.pool_health {
+                PoolHealth::Critical => Status::Critical,
+                PoolHealth::Degraded => Status::Warning,
+                PoolHealth::Rebuilding => Status::Warning,
+                PoolHealth::Healthy => usage_status,
+                PoolHealth::Unknown => Status::Unknown,
+            };
+
+            // Storage pool info metrics
+            metrics.push(Metric {
+                name: format!("disk_{}_mount_point", pool_name),
+                value: MetricValue::String(storage_pool.mount_point.clone()),
+                unit: None,
+                description: Some(format!("Mount: {}", storage_pool.mount_point)),
+                status: Status::Ok,
+                timestamp,
+            });
+
+            metrics.push(Metric {
+                name: format!("disk_{}_filesystem", pool_name),
+                value: MetricValue::String(storage_pool.filesystem.clone()),
+                unit: None,
+                description: Some(format!("FS: {}", storage_pool.filesystem)),
+                status: Status::Ok,
+                timestamp,
+            });
+
+            // Enhanced pool type information
+            let pool_type_str = match &storage_pool.pool_type {
+                StoragePoolType::Single => "single".to_string(),
+                StoragePoolType::PhysicalDrive { filesystems } => {
+                    format!("drive ({})", filesystems.len())
+                }
+                StoragePoolType::MergerfsPool { data_disks, parity_disks } => {
+                    format!("mergerfs ({}+{})", data_disks.len(), parity_disks.len())
+                }
+                StoragePoolType::RaidArray { level, member_disks, spare_disks } => {
+                    format!("{} ({}+{})", level, member_disks.len(), spare_disks.len())
+                }
+                StoragePoolType::ZfsPool { pool_name, .. } => {
+                    format!("zfs ({})", pool_name)
+                }
+            };
+
+            metrics.push(Metric {
+                name: format!("disk_{}_pool_type", pool_name),
+                value: MetricValue::String(pool_type_str.clone()),
+                unit: None,
+                description: Some(format!("Type: {}", pool_type_str)),
+                status: Status::Ok,
+                timestamp,
+            });
+
+            // Pool health status
+            let health_str = match storage_pool.pool_health {
+                PoolHealth::Healthy => "healthy",
+                PoolHealth::Degraded => "degraded", 
+                PoolHealth::Critical => "critical",
+                PoolHealth::Rebuilding => "rebuilding",
+                PoolHealth::Unknown => "unknown",
+            };
+
+            metrics.push(Metric {
+                name: format!("disk_{}_pool_health", pool_name),
+                value: MetricValue::String(health_str.to_string()),
+                unit: None,
+                description: Some(format!("Health: {}", health_str)),
+                status: pool_status,
+                timestamp,
+            });
+
+            // Storage pool size metrics
+            metrics.push(Metric {
+                name: format!("disk_{}_total_gb", pool_name),
+                value: MetricValue::Float(size_gb),
+                unit: Some("GB".to_string()),
+                description: Some(format!("Total: {}", storage_pool.size)),
+                status: Status::Ok,
+                timestamp,
+            });
+
+            metrics.push(Metric {
+                name: format!("disk_{}_used_gb", pool_name),
+                value: MetricValue::Float(used_gb),
+                unit: Some("GB".to_string()),
+                description: Some(format!("Used: {}", storage_pool.used)),
+                status: pool_status,
+                timestamp,
+            });
+
+            metrics.push(Metric {
+                name: format!("disk_{}_available_gb", pool_name),
+                value: MetricValue::Float(avail_gb),
+                unit: Some("GB".to_string()),
+                description: Some(format!("Available: {}", storage_pool.available)),
+                status: Status::Ok,
+                timestamp,
+            });
+
+            metrics.push(Metric {
+                name: format!("disk_{}_usage_percent", pool_name),
+                value: MetricValue::Float(storage_pool.usage_percent),
+                unit: Some("%".to_string()),
+                description: Some(format!("Usage: {:.1}%", storage_pool.usage_percent)),
+                status: pool_status,
+                timestamp,
+            });
+
+            // Individual drive metrics for this storage pool
+            for drive in &storage_pool.underlying_drives {
+                // Drive health status
+                metrics.push(Metric {
+                    name: format!("disk_{}_{}_health", pool_name, drive.device),
+                    value: MetricValue::String(drive.health_status.clone()),
+                    unit: None,
+                    description: Some(format!("{}: {}", drive.device, drive.health_status)),
+                    status: if drive.health_status == "PASSED" { Status::Ok } 
+                            else if drive.health_status == "FAILED" { Status::Critical }
+                            else { Status::Unknown },
+                    timestamp,
+                });
+
+                // Drive temperature
+                if let Some(temp) = drive.temperature {
+                    let temp_status = self.calculate_temperature_status(
+                        &format!("disk_{}_{}_temperature", pool_name, drive.device),
+                        temp,
+                        status_tracker
+                    );
+                    
+                    metrics.push(Metric {
+                        name: format!("disk_{}_{}_temperature", pool_name, drive.device),
+                        value: MetricValue::Float(temp),
+                        unit: Some("°C".to_string()),
+                        description: Some(format!("{}: {:.0}°C", drive.device, temp)),
+                        status: temp_status,
+                        timestamp,
+                    });
+                }
+
+                // Drive wear level (for SSDs)
+                if let Some(wear) = drive.wear_level {
+                    let wear_status = if wear >= self.config.wear_critical_percent { Status::Critical }
+                                     else if wear >= self.config.wear_warning_percent { Status::Warning }
+                                     else { Status::Ok };
+                    
+                    metrics.push(Metric {
+                        name: format!("disk_{}_{}_wear_percent", pool_name, drive.device),
+                        value: MetricValue::Float(wear),
+                        unit: Some("%".to_string()),
+                        description: Some(format!("{}: {:.0}% wear", drive.device, wear)),
+                        status: wear_status,
+                        timestamp,
+                    });
+                }
+            }
+
+            // Individual filesystem metrics for PhysicalDrive pools
+            if let StoragePoolType::PhysicalDrive { filesystems } = &storage_pool.pool_type {
+                for filesystem_mount in filesystems {
+                    if let Ok((total_bytes, used_bytes)) = self.get_filesystem_info(filesystem_mount) {
+                        let available_bytes = total_bytes - used_bytes;
+                        let usage_percent = if total_bytes > 0 {
+                            (used_bytes as f64 / total_bytes as f64) * 100.0
+                        } else { 0.0 };
+
+                        let filesystem_name = if filesystem_mount == "/" {
+                            "root".to_string()
+                        } else {
+                            filesystem_mount.trim_start_matches('/').replace('/', "_")
+                        };
+
+                        // Calculate filesystem status based on usage
+                        let fs_status = if usage_percent >= self.config.usage_critical_percent as f64 {
+                            Status::Critical
+                        } else if usage_percent >= self.config.usage_warning_percent as f64 {
+                            Status::Warning
+                        } else {
+                            Status::Ok
+                        };
+
+                        // Filesystem usage metrics
+                        metrics.push(Metric {
+                            name: format!("disk_{}_fs_{}_usage_percent", pool_name, filesystem_name),
+                            value: MetricValue::Float(usage_percent as f32),
+                            unit: Some("%".to_string()),
+                            description: Some(format!("{}: {:.0}%", filesystem_mount, usage_percent)),
+                            status: fs_status.clone(),
+                            timestamp,
+                        });
+
+                        metrics.push(Metric {
+                            name: format!("disk_{}_fs_{}_used_gb", pool_name, filesystem_name),
+                            value: MetricValue::Float(self.bytes_to_gb(used_bytes)),
+                            unit: Some("GB".to_string()),
+                            description: Some(format!("{}: {}GB used", filesystem_mount, self.bytes_to_human_readable(used_bytes))),
+                            status: Status::Ok,
+                            timestamp,
+                        });
+
+                        metrics.push(Metric {
+                            name: format!("disk_{}_fs_{}_total_gb", pool_name, filesystem_name),
+                            value: MetricValue::Float(self.bytes_to_gb(total_bytes)),
+                            unit: Some("GB".to_string()),
+                            description: Some(format!("{}: {}GB total", filesystem_mount, self.bytes_to_human_readable(total_bytes))),
+                            status: Status::Ok,
+                            timestamp,
+                        });
+
+                        metrics.push(Metric {
+                            name: format!("disk_{}_fs_{}_available_gb", pool_name, filesystem_name),
+                            value: MetricValue::Float(self.bytes_to_gb(available_bytes)),
+                            unit: Some("GB".to_string()),
+                            description: Some(format!("{}: {}GB available", filesystem_mount, self.bytes_to_human_readable(available_bytes))),
+                            status: Status::Ok,
+                            timestamp,
+                        });
+
+                        metrics.push(Metric {
+                            name: format!("disk_{}_fs_{}_mount_point", pool_name, filesystem_name),
+                            value: MetricValue::String(filesystem_mount.clone()),
+                            unit: None,
+                            description: Some(format!("Mount: {}", filesystem_mount)),
+                            status: Status::Ok,
+                            timestamp,
+                        });
+                    }
+                }
+            }
+        }
+
+        // Add storage pool count metric
+        metrics.push(Metric {
+            name: "disk_count".to_string(),
+            value: MetricValue::Integer(storage_pools.len() as i64),
+            unit: None,
+            description: Some(format!("Total storage pools: {}", storage_pools.len())),
+            status: Status::Ok,
+            timestamp: chrono::Utc::now().timestamp() as u64,
+        });
+
+
+        let collection_time = start_time.elapsed();
+        debug!(
+            "Multi-disk collection completed in {:?} with {} metrics",
+            collection_time,
+            metrics.len()
+        );
+
+        Ok(metrics)
+    }
+}

agent/src/collectors/memory.rs

@@ -1,5 +1,5 @@
 use async_trait::async_trait;
-use cm_dashboard_shared::{registry, Metric, MetricValue, Status, StatusTracker, HysteresisThresholds};
+use cm_dashboard_shared::{AgentData, TmpfsData, HysteresisThresholds, Status};
 
 use tracing::debug;
 
@@ -10,34 +10,19 @@ use crate::config::MemoryConfig;
 ///
 /// EFFICIENCY OPTIMIZATIONS:
 /// - Single /proc/meminfo read for all memory metrics
-/// - Minimal string parsing with split operations
-/// - Pre-calculated KB to GB conversion
-/// - No regex or complex parsing
-/// - <0.1ms collection time target
+/// - Minimal string allocations
+/// - No process spawning for basic metrics
+/// - <0.5ms collection time target
 pub struct MemoryCollector {
     usage_thresholds: HysteresisThresholds,
 }
 
-/// Memory information parsed from /proc/meminfo
-#[derive(Debug, Default)]
-struct MemoryInfo {
-    total_kb: u64,
-    available_kb: u64,
-    free_kb: u64,
-    buffers_kb: u64,
-    cached_kb: u64,
-    swap_total_kb: u64,
-    swap_free_kb: u64,
-}
-
 impl MemoryCollector {
     pub fn new(config: MemoryConfig) -> Self {
-        // Create hysteresis thresholds with 5% gap for memory usage
-        let usage_thresholds = HysteresisThresholds::with_custom_gaps(
+        // Create hysteresis thresholds with 10% gap for recovery
+        let usage_thresholds = HysteresisThresholds::new(
             config.usage_warning_percent,
-            5.0, // 5% gap for warning recovery
             config.usage_critical_percent,
-            5.0, // 5% gap for critical recovery
         );
         
         Self {
@@ -45,11 +30,6 @@ impl MemoryCollector {
         }
     }
 
-    /// Calculate memory usage status using hysteresis thresholds
-    fn calculate_usage_status(&self, metric_name: &str, usage_percent: f32, status_tracker: &mut StatusTracker) -> Status {
-        status_tracker.calculate_with_hysteresis(metric_name, usage_percent, &self.usage_thresholds)
-    }
-
     /// Parse /proc/meminfo efficiently
     /// Format: "MemTotal:       16384000 kB"
     async fn parse_meminfo(&self) -> Result<MemoryInfo, CollectorError> {
@@ -96,212 +76,141 @@ impl MemoryCollector {
         Ok(info)
     }
 
-    /// Convert KB to GB efficiently (avoiding floating point in hot path)
-    fn kb_to_gb(kb: u64) -> f32 {
-        kb as f32 / 1_048_576.0 // 1024 * 1024
-    }
-
-    /// Calculate memory metrics from parsed info
-    fn calculate_metrics(&self, info: &MemoryInfo, status_tracker: &mut StatusTracker) -> Vec<Metric> {
-        let mut metrics = Vec::with_capacity(6);
-
+    /// Populate memory data directly into AgentData
+    async fn populate_memory_data(&self, info: &MemoryInfo, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         // Calculate derived values
-        let used_kb = info.total_kb - info.available_kb;
-        let usage_percent = (used_kb as f32 / info.total_kb as f32) * 100.0;
-        let usage_status = self.calculate_usage_status(registry::MEMORY_USAGE_PERCENT, usage_percent, status_tracker);
+        let available = info.available_kb;
+        let used = info.total_kb - available;
+        let usage_percent = (used as f32 / info.total_kb as f32) * 100.0;
 
-        let swap_used_kb = info.swap_total_kb - info.swap_free_kb;
+        // Populate basic memory fields
+        agent_data.system.memory.usage_percent = usage_percent;
+        agent_data.system.memory.total_gb = info.total_kb as f32 / (1024.0 * 1024.0);
+        agent_data.system.memory.used_gb = used as f32 / (1024.0 * 1024.0);
 
-        // Convert to GB for metrics
-        let total_gb = Self::kb_to_gb(info.total_kb);
-        let used_gb = Self::kb_to_gb(used_kb);
-        let available_gb = Self::kb_to_gb(info.available_kb);
-        let swap_total_gb = Self::kb_to_gb(info.swap_total_kb);
-        let swap_used_gb = Self::kb_to_gb(swap_used_kb);
+        // Populate swap data if available
+        agent_data.system.memory.swap_total_gb = info.swap_total_kb as f32 / (1024.0 * 1024.0);
+        agent_data.system.memory.swap_used_gb = (info.swap_total_kb - info.swap_free_kb) as f32 / (1024.0 * 1024.0);
 
-        // Memory usage percentage (primary metric with status)
-        metrics.push(
-            Metric::new(
-                registry::MEMORY_USAGE_PERCENT.to_string(),
-                MetricValue::Float(usage_percent),
-                usage_status,
-            )
-            .with_description("Memory usage percentage".to_string())
-            .with_unit("%".to_string()),
-        );
-
-        // Total memory
-        metrics.push(
-            Metric::new(
-                registry::MEMORY_TOTAL_GB.to_string(),
-                MetricValue::Float(total_gb),
-                Status::Ok, // Total memory doesn't have status
-            )
-            .with_description("Total system memory".to_string())
-            .with_unit("GB".to_string()),
-        );
-
-        // Used memory
-        metrics.push(
-            Metric::new(
-                registry::MEMORY_USED_GB.to_string(),
-                MetricValue::Float(used_gb),
-                Status::Ok, // Used memory absolute value doesn't have status
-            )
-            .with_description("Used system memory".to_string())
-            .with_unit("GB".to_string()),
-        );
-
-        // Available memory
-        metrics.push(
-            Metric::new(
-                registry::MEMORY_AVAILABLE_GB.to_string(),
-                MetricValue::Float(available_gb),
-                Status::Ok, // Available memory absolute value doesn't have status
-            )
-            .with_description("Available system memory".to_string())
-            .with_unit("GB".to_string()),
-        );
-
-        // Swap metrics (only if swap exists)
-        if info.swap_total_kb > 0 {
-            metrics.push(
-                Metric::new(
-                    registry::MEMORY_SWAP_TOTAL_GB.to_string(),
-                    MetricValue::Float(swap_total_gb),
-                    Status::Ok,
-                )
-                .with_description("Total swap space".to_string())
-                .with_unit("GB".to_string()),
-            );
-
-            metrics.push(
-                Metric::new(
-                    registry::MEMORY_SWAP_USED_GB.to_string(),
-                    MetricValue::Float(swap_used_gb),
-                    Status::Ok,
-                )
-                .with_description("Used swap space".to_string())
-                .with_unit("GB".to_string()),
-            );
-        }
-
-        // Monitor tmpfs (/tmp) usage
-        if let Ok(tmpfs_metrics) = self.get_tmpfs_metrics(status_tracker) {
-            metrics.extend(tmpfs_metrics);
-        }
-
-        metrics
+        Ok(())
     }
 
-    /// Get tmpfs (/tmp) usage metrics  
-    fn get_tmpfs_metrics(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
-        use std::process::Command;
+    /// Populate tmpfs data into AgentData
+    async fn populate_tmpfs_data(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        // Discover all tmpfs mount points
+        let tmpfs_mounts = self.discover_tmpfs_mounts()?;
         
-        let output = Command::new("df")
-            .arg("--block-size=1")
-            .arg("/tmp")
+        if tmpfs_mounts.is_empty() {
+            debug!("No tmpfs mounts found to monitor");
+            return Ok(());
+        }
+
+        // Get usage data for all tmpfs mounts at once using df
+        let mut df_args = vec!["df", "--output=target,size,used", "--block-size=1"];
+        df_args.extend(tmpfs_mounts.iter().map(|s| s.as_str()));
+
+        let df_output = std::process::Command::new(df_args[0])
+            .args(&df_args[1..])
             .output()
             .map_err(|e| CollectorError::SystemRead {
-                path: "/tmp".to_string(),
+                path: "tmpfs mounts".to_string(),
                 error: e.to_string(),
             })?;
 
-        if !output.status.success() {
-            return Ok(Vec::new()); // Return empty if /tmp not available
+        let df_str = String::from_utf8_lossy(&df_output.stdout);
+        let df_lines: Vec<&str> = df_str.lines().skip(1).collect(); // Skip header
+
+        // Process each tmpfs mount
+        for (i, mount_point) in tmpfs_mounts.iter().enumerate() {
+            if i >= df_lines.len() {
+                debug!("Not enough df output lines for tmpfs mount: {}", mount_point);
+                continue;
+            }
+
+            let parts: Vec<&str> = df_lines[i].split_whitespace().collect();
+            if parts.len() < 3 {
+                debug!("Invalid df output for tmpfs mount: {}", mount_point);
+                continue;
+            }
+
+            let total_bytes: u64 = parts[1].parse().unwrap_or(0);
+            let used_bytes: u64 = parts[2].parse().unwrap_or(0);
+
+            if total_bytes == 0 {
+                continue;
+            }
+
+            let total_gb = total_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
+            let used_gb = used_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
+            let usage_percent = (used_bytes as f32 / total_bytes as f32) * 100.0;
+
+            // Add to tmpfs list
+            agent_data.system.memory.tmpfs.push(TmpfsData {
+                mount: mount_point.clone(),
+                usage_percent,
+                used_gb,
+                total_gb,
+            });
         }
 
-        let output_str = String::from_utf8(output.stdout)
-            .map_err(|e| CollectorError::Parse {
-                value: "df output".to_string(),
-                error: e.to_string(),
-            })?;
+        // Sort tmpfs mounts by mount point for consistent display order
+        agent_data.system.memory.tmpfs.sort_by(|a, b| a.mount.cmp(&b.mount));
 
-        let lines: Vec<&str> = output_str.lines().collect();
-        if lines.len() < 2 {
-            return Ok(Vec::new());
+        Ok(())
+    }
+
+    /// Discover all tmpfs mount points from /proc/mounts
+    fn discover_tmpfs_mounts(&self) -> Result<Vec<String>, CollectorError> {
+        let content = utils::read_proc_file("/proc/mounts")?;
+        let mut tmpfs_mounts = Vec::new();
+
+        for line in content.lines() {
+            let fields: Vec<&str> = line.split_whitespace().collect();
+            if fields.len() >= 3 && fields[2] == "tmpfs" {
+                let mount_point = fields[1];
+                
+                // Filter out system/internal tmpfs mounts that aren't useful for monitoring
+                if self.should_monitor_tmpfs(mount_point) {
+                    tmpfs_mounts.push(mount_point.to_string());
+                }
+            }
         }
 
-        let fields: Vec<&str> = lines[1].split_whitespace().collect();
-        if fields.len() < 4 {
-            return Ok(Vec::new());
-        }
+        debug!("Discovered {} tmpfs mounts: {:?}", tmpfs_mounts.len(), tmpfs_mounts);
+        Ok(tmpfs_mounts)
+    }
 
-        let total_bytes: u64 = fields[1].parse()
-            .map_err(|e: std::num::ParseIntError| CollectorError::Parse {
-                value: fields[1].to_string(),
-                error: e.to_string(),
-            })?;
-        let used_bytes: u64 = fields[2].parse()
-            .map_err(|e: std::num::ParseIntError| CollectorError::Parse {
-                value: fields[2].to_string(),
-                error: e.to_string(),
-            })?;
+    /// Determine if a tmpfs mount point should be monitored
+    fn should_monitor_tmpfs(&self, mount_point: &str) -> bool {
+        // Include commonly useful tmpfs mounts
+        matches!(mount_point, 
+            "/tmp" | "/var/tmp" | "/dev/shm" | "/run" | "/var/log"
+        ) || mount_point.starts_with("/run/user/") // User session tmpfs
+    }
 
-        let total_gb = total_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
-        let used_gb = used_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
-        let usage_percent = if total_bytes > 0 {
-            (used_bytes as f32 / total_bytes as f32) * 100.0
-        } else {
-            0.0
-        };
-
-        let mut metrics = Vec::new();
-        let timestamp = chrono::Utc::now().timestamp() as u64;
-
-        // Calculate status using same thresholds as main memory
-        let tmp_status = self.calculate_usage_status("memory_tmp_usage_percent", usage_percent, status_tracker);
-        
-        metrics.push(Metric {
-            name: "memory_tmp_usage_percent".to_string(),
-            value: MetricValue::Float(usage_percent),
-            unit: Some("%".to_string()),
-            description: Some("tmpfs /tmp usage percentage".to_string()),
-            status: tmp_status,
-            timestamp,
-        });
-
-        metrics.push(Metric {
-            name: "memory_tmp_used_gb".to_string(),
-            value: MetricValue::Float(used_gb),
-            unit: Some("GB".to_string()),
-            description: Some("tmpfs /tmp used space".to_string()),
-            status: Status::Ok,
-            timestamp,
-        });
-
-        metrics.push(Metric {
-            name: "memory_tmp_total_gb".to_string(),
-            value: MetricValue::Float(total_gb),
-            unit: Some("GB".to_string()),
-            description: Some("tmpfs /tmp total space".to_string()),
-            status: Status::Ok,
-            timestamp,
-        });
-
-        Ok(metrics)
+    /// Calculate memory usage status based on thresholds
+    fn calculate_memory_status(&self, usage_percent: f32) -> Status {
+        self.usage_thresholds.evaluate(usage_percent)
     }
 }
 
 #[async_trait]
 impl Collector for MemoryCollector {
-
-    async fn collect(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         debug!("Collecting memory metrics");
         let start = std::time::Instant::now();
 
         // Parse memory info from /proc/meminfo
         let info = self.parse_meminfo().await?;
 
-        // Calculate all metrics from parsed info
-        let metrics = self.calculate_metrics(&info, status_tracker);
+        // Populate memory data directly
+        self.populate_memory_data(&info, agent_data).await?;
+
+        // Collect tmpfs data  
+        self.populate_tmpfs_data(agent_data).await?;
 
         let duration = start.elapsed();
-        debug!(
-            "Memory collection completed in {:?} with {} metrics",
-            duration,
-            metrics.len()
-        );
+        debug!("Memory collection completed in {:?}", duration);
 
         // Efficiency check: warn if collection takes too long
         if duration.as_millis() > 1 {
@@ -311,10 +220,21 @@ impl Collector for MemoryCollector {
             );
         }
 
-        // Store performance metrics
-        // Performance tracking handled by cache system
+        // Calculate status using thresholds
+        agent_data.system.memory.usage_status = self.calculate_memory_status(agent_data.system.memory.usage_percent);
 
-        Ok(metrics)
+        Ok(())
     }
-
 }
+
+/// Internal structure for parsing /proc/meminfo
+#[derive(Default)]
+struct MemoryInfo {
+    total_kb: u64,
+    available_kb: u64,
+    free_kb: u64,
+    buffers_kb: u64,
+    cached_kb: u64,
+    swap_total_kb: u64,
+    swap_free_kb: u64,
+}

agent/src/collectors/mod.rs

@@ -1,5 +1,5 @@
 use async_trait::async_trait;
-use cm_dashboard_shared::{Metric, StatusTracker};
+use cm_dashboard_shared::{AgentData};
 
 
 pub mod backup;
@@ -13,13 +13,11 @@ pub mod systemd;
 pub use error::CollectorError;
 
 
-/// Base trait for all collectors with extreme efficiency requirements
+/// Base trait for all collectors with direct structured data output
 #[async_trait]
 pub trait Collector: Send + Sync {
-    /// Collect all metrics this collector provides
-    async fn collect(&self, status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError>;
-
-
+    /// Collect data and populate AgentData directly with status evaluation
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError>;
 }
 
 /// CPU efficiency rules for all collectors

agent/src/collectors/nixos.rs

@@ -1,172 +1,103 @@
 use async_trait::async_trait;
-use cm_dashboard_shared::{Metric, MetricValue, Status, StatusTracker};
+use cm_dashboard_shared::AgentData;
+use std::fs;
 use std::process::Command;
 use tracing::debug;
 
 use super::{Collector, CollectorError};
 use crate::config::NixOSConfig;
 
-/// NixOS system information collector
+/// NixOS system information collector with structured data output
 /// 
-/// Collects NixOS-specific system information including:
-/// - NixOS version and build information
+/// This collector gathers NixOS-specific information like:
+/// - System generation/build information
+/// - Version information
+/// - Agent version from Nix store path
 pub struct NixOSCollector {
+    config: NixOSConfig,
 }
 
 impl NixOSCollector {
-    pub fn new(_config: NixOSConfig) -> Self {
-        Self {}
+    pub fn new(config: NixOSConfig) -> Self {
+        Self { config }
     }
 
+    /// Collect NixOS system information and populate AgentData
+    async fn collect_nixos_info(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        debug!("Collecting NixOS system information");
 
-    /// Get agent hash from binary path
-    fn get_agent_hash(&self) -> Result<String, Box<dyn std::error::Error>> {
-        // Get the path of the current executable
-        let exe_path = std::env::current_exe()?;
-        let exe_str = exe_path.to_string_lossy();
-        
-        // Extract Nix store hash from path like /nix/store/fn804fh332mp8gz06qawminpj20xl25h-cm-dashboard-0.1.0/bin/cm-dashboard-agent
-        if let Some(store_path) = exe_str.strip_prefix("/nix/store/") {
-            if let Some(dash_pos) = store_path.find('-') {
-                return Ok(store_path[..dash_pos].to_string());
-            }
-        }
-        
-        // Fallback to "unknown" if not in Nix store
-        Ok("unknown".to_string())
+        // Set hostname (this is universal, not NixOS-specific)
+        agent_data.hostname = self.get_hostname().await.unwrap_or_else(|| "unknown".to_string());
+
+        // Set agent version from environment or Nix store path
+        agent_data.agent_version = self.get_agent_version().await;
+
+        // Set NixOS build/generation information
+        agent_data.build_version = self.get_nixos_generation().await;
+
+        // Set current timestamp
+        agent_data.timestamp = chrono::Utc::now().timestamp() as u64;
+
+        Ok(())
     }
 
-    /// Get configuration hash from deployed nix store system
-    /// Get git commit hash from rebuild process
-    fn get_git_commit(&self) -> Result<String, Box<dyn std::error::Error>> {
-        let commit_file = "/var/lib/cm-dashboard/git-commit";
-        match std::fs::read_to_string(commit_file) {
-            Ok(content) => {
-                let commit_hash = content.trim();
-                if commit_hash.len() >= 7 {
-                    Ok(commit_hash.to_string())
-                } else {
-                    Err("Git commit hash too short".into())
-                }
-            }
-            Err(e) => Err(format!("Failed to read git commit file: {}", e).into())
-        }
-    }
-
-    fn get_config_hash(&self) -> Result<String, Box<dyn std::error::Error>> {
-        // Read the symlink target of /run/current-system to get nix store path
-        let output = Command::new("readlink")
-            .arg("/run/current-system")
-            .output()?;
-        
-        if !output.status.success() {
-            return Err("readlink command failed".into());
-        }
-        
-        let binding = String::from_utf8_lossy(&output.stdout);
-        let store_path = binding.trim();
-        
-        // Extract hash from nix store path
-        // Format: /nix/store/HASH-nixos-system-HOSTNAME-VERSION
-        if let Some(hash_part) = store_path.strip_prefix("/nix/store/") {
-            if let Some(hash) = hash_part.split('-').next() {
-                if hash.len() >= 8 {
-                    // Return first 8 characters of nix store hash
-                    return Ok(hash[..8].to_string());
+    /// Get system hostname
+    async fn get_hostname(&self) -> Option<String> {
+        match fs::read_to_string("/etc/hostname") {
+            Ok(hostname) => Some(hostname.trim().to_string()),
+            Err(_) => {
+                // Fallback to hostname command
+                match Command::new("hostname").output() {
+                    Ok(output) => Some(String::from_utf8_lossy(&output.stdout).trim().to_string()),
+                    Err(_) => None,
                 }
             }
         }
-        
-        Err("Could not extract hash from nix store path".into())
     }
 
+    /// Get agent version from Nix store path or environment
+    async fn get_agent_version(&self) -> String {
+        // Try to extract version from the current executable path (Nix store)
+        if let Ok(current_exe) = std::env::current_exe() {
+            if let Some(exe_path) = current_exe.to_str() {
+                if exe_path.starts_with("/nix/store/") {
+                    // Extract version from Nix store path
+                    // Path format: /nix/store/hash-cm-dashboard-agent-v0.1.138/bin/cm-dashboard-agent
+                    if let Some(store_part) = exe_path.strip_prefix("/nix/store/") {
+                        if let Some(dash_pos) = store_part.find('-') {
+                            let package_part = &store_part[dash_pos + 1..];
+                            if let Some(bin_pos) = package_part.find("/bin/") {
+                                let package_name = &package_part[..bin_pos];
+                                // Extract version from package name
+                                if let Some(version_start) = package_name.rfind("-v") {
+                                    return package_name[version_start + 1..].to_string();
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        // Fallback to environment variable or default
+        std::env::var("CM_DASHBOARD_VERSION").unwrap_or_else(|_| "unknown".to_string())
+    }
+
+    /// Get NixOS system generation (build) information
+    async fn get_nixos_generation(&self) -> Option<String> {
+        match Command::new("nixos-version").output() {
+            Ok(output) => {
+                let version_str = String::from_utf8_lossy(&output.stdout);
+                Some(version_str.trim().to_string())
+            }
+            Err(_) => None,
+        }
+    }
 }
 
 #[async_trait]
 impl Collector for NixOSCollector {
-
-    async fn collect(&self, _status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
-        debug!("Collecting NixOS system information");
-        let mut metrics = Vec::new();
-        let timestamp = chrono::Utc::now().timestamp() as u64;
-
-        // Collect git commit information (shows what's actually deployed)
-        match self.get_git_commit() {
-            Ok(git_commit) => {
-                metrics.push(Metric {
-                    name: "system_nixos_build".to_string(),
-                    value: MetricValue::String(git_commit),
-                    unit: None,
-                    description: Some("Git commit hash of deployed configuration".to_string()),
-                    status: Status::Ok,
-                    timestamp,
-                });
-            }
-            Err(e) => {
-                debug!("Failed to get git commit: {}", e);
-                metrics.push(Metric {
-                    name: "system_nixos_build".to_string(),
-                    value: MetricValue::String("unknown".to_string()),
-                    unit: None,
-                    description: Some("Git commit hash (failed to detect)".to_string()),
-                    status: Status::Unknown,
-                    timestamp,
-                });
-            }
-        }
-
-
-        // Collect config hash
-        match self.get_config_hash() {
-            Ok(hash) => {
-                metrics.push(Metric {
-                    name: "system_config_hash".to_string(),
-                    value: MetricValue::String(hash),
-                    unit: None,
-                    description: Some("NixOS deployed configuration hash".to_string()),
-                    status: Status::Ok,
-                    timestamp,
-                });
-            }
-            Err(e) => {
-                debug!("Failed to get config hash: {}", e);
-                metrics.push(Metric {
-                    name: "system_config_hash".to_string(),
-                    value: MetricValue::String("unknown".to_string()),
-                    unit: None,
-                    description: Some("Deployed config hash (failed to detect)".to_string()),
-                    status: Status::Unknown,
-                    timestamp,
-                });
-            }
-        }
-
-        // Collect agent hash
-        match self.get_agent_hash() {
-            Ok(hash) => {
-                metrics.push(Metric {
-                    name: "system_agent_hash".to_string(),
-                    value: MetricValue::String(hash),
-                    unit: None,
-                    description: Some("Agent Nix store hash".to_string()),
-                    status: Status::Ok,
-                    timestamp,
-                });
-            }
-            Err(e) => {
-                debug!("Failed to get agent hash: {}", e);
-                metrics.push(Metric {
-                    name: "system_agent_hash".to_string(),
-                    value: MetricValue::String("unknown".to_string()),
-                    unit: None,
-                    description: Some("Agent hash (failed to detect)".to_string()),
-                    status: Status::Unknown,
-                    timestamp,
-                });
-            }
-        }
-
-        debug!("Collected {} NixOS metrics", metrics.len());
-        Ok(metrics)
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        self.collect_nixos_info(agent_data).await
     }
 }

agent/src/collectors/systemd.rs

@@ -1,6 +1,6 @@
 use anyhow::Result;
 use async_trait::async_trait;
-use cm_dashboard_shared::{Metric, MetricValue, Status, StatusTracker};
+use cm_dashboard_shared::{AgentData, ServiceData, Status};
 use std::process::Command;
 use std::sync::RwLock;
 use std::time::Instant;
@@ -9,7 +9,7 @@ use tracing::debug;
 use super::{Collector, CollectorError};
 use crate::config::SystemdConfig;
 
-/// Systemd collector for monitoring systemd services
+/// Systemd collector for monitoring systemd services with structured data output
 pub struct SystemdCollector {
     /// Cached state with thread-safe interior mutability
     state: RwLock<ServiceCacheState>,
@@ -18,22 +18,20 @@ pub struct SystemdCollector {
 }
 
 /// Internal state for service caching
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 struct ServiceCacheState {
+    /// Last collection time for performance tracking
+    last_collection: Option<Instant>,
+    /// Cached service data
+    services: Vec<ServiceInfo>,
     /// Interesting services to monitor (cached after discovery)
     monitored_services: Vec<String>,
     /// Cached service status information from discovery
     service_status_cache: std::collections::HashMap<String, ServiceStatusInfo>,
     /// Last time services were discovered
     last_discovery_time: Option<Instant>,
-    /// How often to rediscover services (5 minutes)
+    /// How often to rediscover services (from config)
     discovery_interval_seconds: u64,
-    /// Cached nginx site latency metrics
-    nginx_site_metrics: Vec<Metric>,
-    /// Last time nginx sites were checked
-    last_nginx_check_time: Option<Instant>,
-    /// How often to check nginx site latency (configurable)
-    nginx_check_interval_seconds: u64,
 }
 
 /// Cached service status information from systemctl list-units
@@ -44,22 +42,93 @@ struct ServiceStatusInfo {
     sub_state: String,
 }
 
+/// Internal service information
+#[derive(Debug, Clone)]
+struct ServiceInfo {
+    name: String,
+    status: String,           // "active", "inactive", "failed", etc.
+    memory_mb: f32,          // Memory usage in MB
+    disk_gb: f32,            // Disk usage in GB
+}
+
 impl SystemdCollector {
     pub fn new(config: SystemdConfig) -> Self {
+        let state = ServiceCacheState {
+            last_collection: None,
+            services: Vec::new(),
+            monitored_services: Vec::new(),
+            service_status_cache: std::collections::HashMap::new(),
+            last_discovery_time: None,
+            discovery_interval_seconds: config.interval_seconds,
+        };
+        
         Self {
-            state: RwLock::new(ServiceCacheState {
-                monitored_services: Vec::new(),
-                service_status_cache: std::collections::HashMap::new(),
-                last_discovery_time: None,
-                discovery_interval_seconds: config.interval_seconds,
-                nginx_site_metrics: Vec::new(),
-                last_nginx_check_time: None,
-                nginx_check_interval_seconds: config.nginx_check_interval_seconds,
-            }),
+            state: RwLock::new(state),
             config,
         }
     }
 
+    /// Collect service data and populate AgentData
+    async fn collect_service_data(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        let start_time = Instant::now();
+        debug!("Collecting systemd services metrics");
+
+        // Get cached services (discovery only happens when needed)
+        let monitored_services = match self.get_monitored_services() {
+            Ok(services) => services,
+            Err(e) => {
+                debug!("Failed to get monitored services: {}", e);
+                return Ok(());
+            }
+        };
+
+        // Collect service data for each monitored service
+        let mut services = Vec::new();
+        for service_name in &monitored_services {
+            match self.get_service_status(service_name) {
+                Ok((active_status, _detailed_info)) => {
+                    let memory_mb = self.get_service_memory_usage(service_name).await.unwrap_or(0.0);
+                    let disk_gb = self.get_service_disk_usage(service_name).await.unwrap_or(0.0);
+                    
+                    let service_info = ServiceInfo {
+                        name: service_name.clone(),
+                        status: active_status,
+                        memory_mb,
+                        disk_gb,
+                    };
+                    services.push(service_info);
+                }
+                Err(e) => {
+                    debug!("Failed to get status for service {}: {}", service_name, e);
+                }
+            }
+        }
+        
+        // Update cached state
+        {
+            let mut state = self.state.write().unwrap();
+            state.last_collection = Some(start_time);
+            state.services = services.clone();
+        }
+
+        // Populate AgentData with service information
+        for service in services {
+            agent_data.services.push(ServiceData {
+                name: service.name.clone(),
+                status: service.status.clone(),
+                memory_mb: service.memory_mb,
+                disk_gb: service.disk_gb,
+                user_stopped: false, // TODO: Integrate with service tracker
+                service_status: self.calculate_service_status(&service.name, &service.status),
+            });
+        }
+
+        let elapsed = start_time.elapsed();
+        debug!("Systemd collection completed in {:?} with {} services", elapsed, agent_data.services.len());
+
+        Ok(())
+    }
+
     /// Get monitored services, discovering them if needed or cache is expired
     fn get_monitored_services(&self) -> Result<Vec<String>> {
         // Check if we need discovery without holding the lock
@@ -76,25 +145,19 @@ impl SystemdCollector {
 
         if needs_discovery {
             debug!("Discovering systemd services (cache expired or first run)");
-            // Call discover_services_internal which doesn't update state
             match self.discover_services_internal() {
                 Ok((services, status_cache)) => {
-                    // Update state with discovered services in a separate scope
                     if let Ok(mut state) = self.state.write() {
                         state.monitored_services = services.clone();
                         state.service_status_cache = status_cache;
                         state.last_discovery_time = Some(Instant::now());
-                        debug!(
-                            "Auto-discovered {} services to monitor: {:?}",
-                            state.monitored_services.len(),
-                            state.monitored_services
-                        );
+                        debug!("Auto-discovered {} services to monitor: {:?}", 
+                            state.monitored_services.len(), state.monitored_services);
                         return Ok(services);
                     }
                 }
                 Err(e) => {
                     debug!("Failed to discover services, using cached list: {}", e);
-                    // Continue with existing cached services if discovery fails
                 }
             }
         }
@@ -104,45 +167,11 @@ impl SystemdCollector {
         Ok(state.monitored_services.clone())
     }
 
-    /// Get nginx site metrics, checking them if cache is expired
-    fn get_nginx_site_metrics(&self) -> Vec<Metric> {
-        let mut state = self.state.write().unwrap();
-
-        // Check if we need to refresh nginx site metrics
-        let needs_refresh = match state.last_nginx_check_time {
-            None => true, // First time
-            Some(last_time) => {
-                let elapsed = last_time.elapsed().as_secs();
-                elapsed >= state.nginx_check_interval_seconds
-            }
-        };
-
-        if needs_refresh {
-            // Only check nginx sites if nginx service is active
-            if state.monitored_services.iter().any(|s| s.contains("nginx")) {
-                debug!(
-                    "Refreshing nginx site latency metrics (interval: {}s)",
-                    state.nginx_check_interval_seconds
-                );
-                let fresh_metrics = self.get_nginx_sites();
-                state.nginx_site_metrics = fresh_metrics;
-                state.last_nginx_check_time = Some(Instant::now());
-            }
-        }
-
-        state.nginx_site_metrics.clone()
-    }
-
-    /// Auto-discover interesting services to monitor (internal version that doesn't update state)
+    /// Auto-discover interesting services to monitor
     fn discover_services_internal(&self) -> Result<(Vec<String>, std::collections::HashMap<String, ServiceStatusInfo>)> {
-        debug!("Starting systemd service discovery with status caching");
-        
-        // First: Get all service unit files (includes services that have never been started)
+        // First: Get all service unit files
         let unit_files_output = Command::new("systemctl")
-            .arg("list-unit-files")
-            .arg("--type=service")
-            .arg("--no-pager")
-            .arg("--plain")
+            .args(&["list-unit-files", "--type=service", "--no-pager", "--plain"])
             .output()?;
 
         if !unit_files_output.status.success() {
@@ -151,11 +180,7 @@ impl SystemdCollector {
 
         // Second: Get runtime status of all units
         let units_status_output = Command::new("systemctl")
-            .arg("list-units")
-            .arg("--type=service")
-            .arg("--all")
-            .arg("--no-pager")
-            .arg("--plain")
+            .args(&["list-units", "--type=service", "--all", "--no-pager", "--plain"])
             .output()?;
 
         if !units_status_output.status.success() {
@@ -166,19 +191,16 @@ impl SystemdCollector {
         let units_status_str = String::from_utf8(units_status_output.stdout)?;
         let mut services = Vec::new();
 
-        // Use configuration instead of hardcoded values
         let excluded_services = &self.config.excluded_services;
         let service_name_filters = &self.config.service_name_filters;
 
-        // Parse all service unit files to get complete service list
+        // Parse all service unit files
         let mut all_service_names = std::collections::HashSet::new();
-        
         for line in unit_files_str.lines() {
             let fields: Vec<&str> = line.split_whitespace().collect();
             if fields.len() >= 2 && fields[0].ends_with(".service") {
                 let service_name = fields[0].trim_end_matches(".service");
                 all_service_names.insert(service_name.to_string());
-                debug!("Found service unit file: {}", service_name);
             }
         }
 
@@ -188,20 +210,15 @@ impl SystemdCollector {
             let fields: Vec<&str> = line.split_whitespace().collect();
             if fields.len() >= 4 && fields[0].ends_with(".service") {
                 let service_name = fields[0].trim_end_matches(".service");
-                
-                // Extract status information from systemctl list-units output
                 let load_state = fields.get(1).unwrap_or(&"unknown").to_string();
                 let active_state = fields.get(2).unwrap_or(&"unknown").to_string();
                 let sub_state = fields.get(3).unwrap_or(&"unknown").to_string();
 
-                // Cache the status information
                 status_cache.insert(service_name.to_string(), ServiceStatusInfo {
-                    load_state: load_state.clone(),
-                    active_state: active_state.clone(),
-                    sub_state: sub_state.clone(),
+                    load_state,
+                    active_state,
+                    sub_state,
                 });
-
-                debug!("Got runtime status for service: {} (load:{}, active:{}, sub:{})", service_name, load_state, active_state, sub_state);
             }
         }
 
@@ -213,108 +230,34 @@ impl SystemdCollector {
                     active_state: "inactive".to_string(),
                     sub_state: "dead".to_string(),
                 });
-                debug!("Service {} found in unit files but not runtime - marked as inactive", service_name);
             }
         }
 
-
-        // Now process all discovered services
+        // Process all discovered services and apply filters
         for service_name in &all_service_names {
-                debug!("Processing service: '{}'", service_name);
-
-                // Skip excluded services first
-                let mut is_excluded = false;
-                for excluded in excluded_services {
-                    if service_name.contains(excluded) {
-                        debug!(
-                            "EXCLUDING service '{}' because it matches pattern '{}'",
-                            service_name, excluded
-                        );
-                        is_excluded = true;
-                        break;
-                    }
+            // Skip excluded services first
+            let mut is_excluded = false;
+            for excluded in excluded_services {
+                if service_name.contains(excluded) {
+                    is_excluded = true;
+                    break;
                 }
-
-                if is_excluded {
-                    debug!("Skipping excluded service: '{}'", service_name);
-                    continue;
-                }
-
-                // Check if this service matches our filter patterns (supports wildcards)
-                for pattern in service_name_filters {
-                    if self.matches_pattern(service_name, pattern) {
-                        debug!(
-                            "INCLUDING service '{}' because it matches pattern '{}'",
-                            service_name, pattern
-                        );
-                        services.push(service_name.to_string());
-                        break;
-                    }
-                }
-        }
-
-        debug!("Service discovery completed: found {} matching services: {:?}", services.len(), services);
-        if services.is_empty() {
-            debug!("No services found matching the configured filters - this may indicate a parsing issue");
-        }
-
-        Ok((services, status_cache))
-    }
-
-    /// Check if service name matches pattern (supports wildcards like nginx*)
-    fn matches_pattern(&self, service_name: &str, pattern: &str) -> bool {
-        if pattern.contains('*') {
-            // Wildcard pattern matching
-            if pattern.ends_with('*') {
-                // Pattern like "nginx*" - match if service starts with "nginx"
-                let prefix = &pattern[..pattern.len() - 1];
-                service_name.starts_with(prefix)
-            } else if pattern.starts_with('*') {
-                // Pattern like "*backup" - match if service ends with "backup"
-                let suffix = &pattern[1..];
-                service_name.ends_with(suffix)
-            } else {
-                // Pattern like "nginx*backup" - simple glob matching
-                self.simple_glob_match(service_name, pattern)
             }
-        } else {
-            // Exact match (existing behavior)
-            service_name == pattern
-        }
-    }
 
-    /// Simple glob pattern matching for patterns with * in middle
-    fn simple_glob_match(&self, text: &str, pattern: &str) -> bool {
-        let parts: Vec<&str> = pattern.split('*').collect();
-        if parts.is_empty() {
-            return false;
-        }
-
-        let mut pos = 0;
-        for (i, part) in parts.iter().enumerate() {
-            if part.is_empty() {
+            if is_excluded {
                 continue;
             }
 
-            if i == 0 {
-                // First part must match at start
-                if !text[pos..].starts_with(part) {
-                    return false;
-                }
-                pos += part.len();
-            } else if i == parts.len() - 1 {
-                // Last part must match at end
-                return text[pos..].ends_with(part);
-            } else {
-                // Middle part must be found somewhere
-                if let Some(found_pos) = text[pos..].find(part) {
-                    pos += found_pos + part.len();
-                } else {
-                    return false;
+            // Check if this service matches our filter patterns (supports wildcards)
+            for pattern in service_name_filters {
+                if self.matches_pattern(service_name, pattern) {
+                    services.push(service_name.to_string());
+                    break;
                 }
             }
         }
-        true
+
+        Ok((services, status_cache))
     }
 
     /// Get service status from cache (if available) or fallback to systemctl
@@ -333,527 +276,207 @@ impl SystemdCollector {
             }
         }
 
-        // Fallback to systemctl if not in cache (shouldn't happen during normal operation)
-        debug!("Service '{}' not found in cache, falling back to systemctl", service);
+        // Fallback to systemctl if not in cache
         let output = Command::new("systemctl")
-            .arg("is-active")
-            .arg(format!("{}.service", service))
+            .args(&["is-active", &format!("{}.service", service)])
             .output()?;
 
         let active_status = String::from_utf8(output.stdout)?.trim().to_string();
 
         // Get more detailed info
         let output = Command::new("systemctl")
-        .arg("show")
-        .arg(format!("{}.service", service))
-        .arg("--property=LoadState,ActiveState,SubState")
-        .output()?;
+            .args(&["show", &format!("{}.service", service), "--property=LoadState,ActiveState,SubState"])
+            .output()?;
 
         let detailed_info = String::from_utf8(output.stdout)?;
         Ok((active_status, detailed_info))
     }
 
-    /// Calculate service status
-    fn calculate_service_status(&self, active_status: &str) -> Status {
+    /// Check if service name matches pattern (supports wildcards like nginx*)
+    fn matches_pattern(&self, service_name: &str, pattern: &str) -> bool {
+        if pattern.contains('*') {
+            if pattern.ends_with('*') {
+                // Pattern like "nginx*" - match if service starts with "nginx"
+                let prefix = &pattern[..pattern.len() - 1];
+                service_name.starts_with(prefix)
+            } else if pattern.starts_with('*') {
+                // Pattern like "*backup" - match if service ends with "backup"
+                let suffix = &pattern[1..];
+                service_name.ends_with(suffix)
+            } else {
+                // Pattern like "nginx*backup" - simple glob matching
+                self.simple_glob_match(service_name, pattern)
+            }
+        } else {
+            // Exact match
+            service_name == pattern
+        }
+    }
+
+    /// Simple glob matching for patterns with * in the middle
+    fn simple_glob_match(&self, text: &str, pattern: &str) -> bool {
+        let parts: Vec<&str> = pattern.split('*').collect();
+        let mut pos = 0;
+        
+        for part in parts {
+            if part.is_empty() {
+                continue;
+            }
+            if let Some(found_pos) = text[pos..].find(part) {
+                pos += found_pos + part.len();
+            } else {
+                return false;
+            }
+        }
+        true
+    }
+
+    /// Get disk usage for a specific service
+    async fn get_service_disk_usage(&self, service_name: &str) -> Result<f32, CollectorError> {
+        // Check if this service has configured directory paths
+        if let Some(dirs) = self.config.service_directories.get(service_name) {
+            // Service has configured paths - use the first accessible one
+            for dir in dirs {
+                if let Some(size) = self.get_directory_size(dir) {
+                    return Ok(size);
+                }
+            }
+            // If configured paths failed, return 0
+            return Ok(0.0);
+        }
+
+        // No configured path - try to get WorkingDirectory from systemctl
+        let output = Command::new("systemctl")
+            .args(&["show", &format!("{}.service", service_name), "--property=WorkingDirectory"])
+            .output()
+            .map_err(|e| CollectorError::SystemRead {
+                path: format!("WorkingDirectory for {}", service_name),
+                error: e.to_string(),
+            })?;
+
+        let output_str = String::from_utf8_lossy(&output.stdout);
+        for line in output_str.lines() {
+            if line.starts_with("WorkingDirectory=") && !line.contains("[not set]") {
+                let dir = line.strip_prefix("WorkingDirectory=").unwrap_or("");
+                if !dir.is_empty() {
+                    return Ok(self.get_directory_size(dir).unwrap_or(0.0));
+                }
+            }
+        }
+
+        Ok(0.0)
+    }
+    
+    /// Get size of a directory in GB
+    fn get_directory_size(&self, path: &str) -> Option<f32> {
+        let output = Command::new("du")
+            .args(&["-sb", path])
+            .output()
+            .ok()?;
+
+        if !output.status.success() {
+            return None;
+        }
+
+        let output_str = String::from_utf8_lossy(&output.stdout);
+        let parts: Vec<&str> = output_str.split_whitespace().collect();
+        if let Some(size_str) = parts.first() {
+            if let Ok(size_bytes) = size_str.parse::<u64>() {
+                return Some(size_bytes as f32 / (1024.0 * 1024.0 * 1024.0));
+            }
+        }
+
+        None
+    }
+
+    /// Calculate service status, taking user-stopped services into account
+    fn calculate_service_status(&self, service_name: &str, active_status: &str) -> Status {
         match active_status.to_lowercase().as_str() {
             "active" => Status::Ok,
-            "inactive" | "dead" => Status::Warning,
+            "inactive" | "dead" => {
+                debug!("Service '{}' is inactive - treating as Inactive status", service_name);
+                Status::Inactive
+            },
             "failed" | "error" => Status::Critical,
-            "activating" | "deactivating" | "reloading" | "start" | "stop" | "restart" => Status::Pending,
+            "activating" | "deactivating" | "reloading" | "starting" | "stopping" => {
+                debug!("Service '{}' is transitioning - treating as Pending", service_name);
+                Status::Pending
+            },
             _ => Status::Unknown,
         }
     }
 
-    /// Get service memory usage (if available)
-    fn get_service_memory(&self, service: &str) -> Option<f32> {
+    /// Get memory usage for a specific service
+    async fn get_service_memory_usage(&self, service_name: &str) -> Result<f32, CollectorError> {
         let output = Command::new("systemctl")
-            .arg("show")
-            .arg(format!("{}.service", service))
-            .arg("--property=MemoryCurrent")
+            .args(&["show", &format!("{}.service", service_name), "--property=MemoryCurrent"])
             .output()
-            .ok()?;
+            .map_err(|e| CollectorError::SystemRead {
+                path: format!("memory usage for {}", service_name),
+                error: e.to_string(),
+            })?;
 
-        let output_str = String::from_utf8(output.stdout).ok()?;
+        let output_str = String::from_utf8_lossy(&output.stdout);
+        
         for line in output_str.lines() {
             if line.starts_with("MemoryCurrent=") {
-                let memory_str = line.trim_start_matches("MemoryCurrent=");
-                if let Ok(memory_bytes) = memory_str.parse::<u64>() {
-                    return Some(memory_bytes as f32 / (1024.0 * 1024.0)); // Convert to MB
-                }
-            }
-        }
-        None
-    }
-
-
-    /// Get directory size in GB with permission-aware logging
-    fn get_directory_size(&self, dir: &str) -> Option<f32> {
-        let output = Command::new("sudo").arg("du").arg("-sb").arg(dir).output().ok()?;
-
-        if !output.status.success() {
-            // Log permission errors for debugging but don't spam logs
-            let stderr = String::from_utf8_lossy(&output.stderr);
-            if stderr.contains("Permission denied") {
-                debug!("Permission denied accessing directory: {}", dir);
-            } else {
-                debug!("Failed to get size for directory {}: {}", dir, stderr);
-            }
-            return None;
-        }
-
-        let output_str = String::from_utf8(output.stdout).ok()?;
-        let size_str = output_str.split_whitespace().next()?;
-        if let Ok(size_bytes) = size_str.parse::<u64>() {
-            let size_gb = size_bytes as f32 / (1024.0 * 1024.0 * 1024.0);
-            // Return size even if very small (minimum 0.001 GB = 1MB for visibility)
-            if size_gb > 0.0 {
-                Some(size_gb.max(0.001))
-            } else {
-                None
-            }
-        } else {
-            None
-        }
-    }
-
-    /// Get service disk usage - simplified and configuration-driven
-    fn get_service_disk_usage(&self, service: &str) -> Option<f32> {
-        // 1. Check if service has configured directories (exact match only)
-        if let Some(dirs) = self.config.service_directories.get(service) {
-            // Service has configured paths - use the first accessible one
-            for dir in dirs {
-                if let Some(size) = self.get_directory_size(dir) {
-                    return Some(size);
-                }
-            }
-            // If configured paths failed, return None (shows as 0)
-            return Some(0.0);
-        }
-
-        // 2. No configured path - use systemctl WorkingDirectory
-        let output = Command::new("systemctl")
-            .arg("show")
-            .arg(format!("{}.service", service))
-            .arg("--property=WorkingDirectory")
-            .output()
-            .ok()?;
-
-        let output_str = String::from_utf8(output.stdout).ok()?;
-        for line in output_str.lines() {
-            if line.starts_with("WorkingDirectory=") && !line.contains("[not set]") {
-                let dir = line.trim_start_matches("WorkingDirectory=");
-                if !dir.is_empty() && dir != "/" {
-                    return self.get_directory_size(dir);
-                }
-            }
-        }
-
-        None
-    }
-
-
-
-
-
-
-}
-
-#[async_trait]
-impl Collector for SystemdCollector {
-
-    async fn collect(&self, _status_tracker: &mut StatusTracker) -> Result<Vec<Metric>, CollectorError> {
-        let start_time = Instant::now();
-        debug!("Collecting systemd services metrics");
-
-        let mut metrics = Vec::new();
-
-        // Get cached services (discovery only happens when needed)
-        let monitored_services = match self.get_monitored_services() {
-            Ok(services) => services,
-            Err(e) => {
-                debug!("Failed to get monitored services: {}", e);
-                return Ok(metrics);
-            }
-        };
-
-        // Collect individual metrics for each monitored service (status, memory, disk only)
-        for service in &monitored_services {
-            match self.get_service_status(service) {
-                Ok((active_status, _detailed_info)) => {
-                    let status = self.calculate_service_status(&active_status);
-
-                    // Individual service status metric
-                    metrics.push(Metric {
-                        name: format!("service_{}_status", service),
-                        value: MetricValue::String(active_status.clone()),
-                        unit: None,
-                        description: Some(format!("Service {} status", service)),
-                        status,
-                        timestamp: chrono::Utc::now().timestamp() as u64,
-                    });
-
-                    // Service memory usage (if available)
-                    if let Some(memory_mb) = self.get_service_memory(service) {
-                        metrics.push(Metric {
-                            name: format!("service_{}_memory_mb", service),
-                            value: MetricValue::Float(memory_mb),
-                            unit: Some("MB".to_string()),
-                            description: Some(format!("Service {} memory usage", service)),
-                            status: Status::Ok,
-                            timestamp: chrono::Utc::now().timestamp() as u64,
-                        });
-                    }
-
-                    // Service disk usage (comprehensive detection)
-                    if let Some(disk_gb) = self.get_service_disk_usage(service) {
-                        metrics.push(Metric {
-                            name: format!("service_{}_disk_gb", service),
-                            value: MetricValue::Float(disk_gb),
-                            unit: Some("GB".to_string()),
-                            description: Some(format!("Service {} disk usage", service)),
-                            status: Status::Ok,
-                            timestamp: chrono::Utc::now().timestamp() as u64,
-                        });
-                    }
-
-                    // Sub-service metrics for specific services
-                    if service.contains("nginx") && active_status == "active" {
-                        metrics.extend(self.get_nginx_site_metrics());
-                    }
-
-                    if service.contains("docker") && active_status == "active" {
-                        metrics.extend(self.get_docker_containers());
-                    }
-                }
-                Err(e) => {
-                    debug!("Failed to get status for service {}: {}", service, e);
-                }
-            }
-        }
-
-        let collection_time = start_time.elapsed();
-        debug!(
-            "Systemd collection completed in {:?} with {} individual service metrics",
-            collection_time,
-            metrics.len()
-        );
-
-        Ok(metrics)
-    }
-
-}
-
-impl SystemdCollector {
-    /// Get nginx sites with latency checks
-    fn get_nginx_sites(&self) -> Vec<Metric> {
-        let mut metrics = Vec::new();
-        let timestamp = chrono::Utc::now().timestamp() as u64;
-
-        // Discover nginx sites from configuration
-        let sites = self.discover_nginx_sites();
-
-        for (site_name, url) in &sites {
-            match self.check_site_latency(url) {
-                Ok(latency_ms) => {
-                    let status = if latency_ms < self.config.nginx_latency_critical_ms {
-                        Status::Ok
-                    } else {
-                        Status::Critical
-                    };
-
-                    metrics.push(Metric {
-                        name: format!("service_nginx_{}_latency_ms", site_name),
-                        value: MetricValue::Float(latency_ms),
-                        unit: Some("ms".to_string()),
-                        description: Some(format!("Response time for {}", url)),
-                        status,
-                        timestamp,
-                    });
-                }
-                Err(_) => {
-                    // Site is unreachable
-                    metrics.push(Metric {
-                        name: format!("service_nginx_{}_latency_ms", site_name),
-                        value: MetricValue::Float(-1.0), // Use -1 to indicate error
-                        unit: Some("ms".to_string()),
-                        description: Some(format!("Response time for {} (unreachable)", url)),
-                        status: Status::Critical,
-                        timestamp,
-                    });
-                }
-            }
-        }
-
-        metrics
-    }
-
-    /// Get docker containers as sub-services
-    fn get_docker_containers(&self) -> Vec<Metric> {
-        let mut metrics = Vec::new();
-        let timestamp = chrono::Utc::now().timestamp() as u64;
-
-        // Check if docker is available
-        let output = Command::new("docker")
-            .arg("ps")
-            .arg("--format")
-            .arg("{{.Names}},{{.Status}}")
-            .output();
-
-        let output = match output {
-            Ok(out) if out.status.success() => out,
-            _ => return metrics, // Docker not available or failed
-        };
-
-        let output_str = match String::from_utf8(output.stdout) {
-            Ok(s) => s,
-            Err(_) => return metrics,
-        };
-
-        for line in output_str.lines() {
-            if line.trim().is_empty() {
-                continue;
-            }
-
-            let parts: Vec<&str> = line.split(',').collect();
-            if parts.len() >= 2 {
-                let container_name = parts[0].trim();
-                let status_str = parts[1].trim();
-
-                let status = if status_str.contains("Up") {
-                    Status::Ok
-                } else if status_str.contains("Exited") {
-                    Status::Warning
-                } else {
-                    Status::Critical
-                };
-
-                metrics.push(Metric {
-                    name: format!("service_docker_{}_status", container_name),
-                    value: MetricValue::String(status_str.to_string()),
-                    unit: None,
-                    description: Some(format!("Docker container {} status", container_name)),
-                    status,
-                    timestamp,
-                });
-            }
-        }
-
-        metrics
-    }
-
-    /// Check site latency using HTTP GET requests
-    fn check_site_latency(&self, url: &str) -> Result<f32, Box<dyn std::error::Error>> {
-        use std::time::Duration;
-        use std::time::Instant;
-
-        let start = Instant::now();
-
-        // Create HTTP client with timeouts from configuration
-        let client = reqwest::blocking::Client::builder()
-            .timeout(Duration::from_secs(self.config.http_timeout_seconds))
-            .connect_timeout(Duration::from_secs(self.config.http_connect_timeout_seconds))
-            .redirect(reqwest::redirect::Policy::limited(10))
-            .build()?;
-
-        // Make GET request and measure latency
-        let response = client.get(url).send()?;
-        let latency = start.elapsed().as_millis() as f32;
-
-        // Check if response is successful (2xx or 3xx status codes)
-        if response.status().is_success() || response.status().is_redirection() {
-            Ok(latency)
-        } else {
-            Err(format!(
-                "HTTP request failed for {} with status: {}",
-                url,
-                response.status()
-            )
-            .into())
-        }
-    }
-
-    /// Discover nginx sites from configuration files (like the old working implementation)
-    fn discover_nginx_sites(&self) -> Vec<(String, String)> {
-        use tracing::debug;
-
-        // Use the same approach as the old working agent: get nginx config from systemd
-        let config_content = match self.get_nginx_config_from_systemd() {
-            Some(content) => content,
-            None => {
-                debug!("Could not get nginx config from systemd, trying nginx -T fallback");
-                match self.get_nginx_config_via_command() {
-                    Some(content) => content,
-                    None => {
-                        debug!("Could not get nginx config via any method");
-                        return Vec::new();
-                    }
-                }
-            }
-        };
-
-        // Parse the config content to extract sites
-        self.parse_nginx_config_for_sites(&config_content)
-    }
-
-    /// Get nginx config from systemd service definition (NixOS compatible)
-    fn get_nginx_config_from_systemd(&self) -> Option<String> {
-        use tracing::debug;
-
-        let output = std::process::Command::new("systemctl")
-            .args(["show", "nginx", "--property=ExecStart", "--no-pager"])
-            .output()
-            .ok()?;
-
-        if !output.status.success() {
-            debug!("Failed to get nginx ExecStart from systemd");
-            return None;
-        }
-
-        let stdout = String::from_utf8_lossy(&output.stdout);
-        debug!("systemctl show nginx output: {}", stdout);
-
-        // Parse ExecStart to extract -c config path
-        for line in stdout.lines() {
-            if line.starts_with("ExecStart=") {
-                debug!("Found ExecStart line: {}", line);
-                // Handle both traditional and NixOS systemd formats
-                if let Some(config_path) = self.extract_config_path_from_exec_start(line) {
-                    debug!("Extracted config path: {}", config_path);
-                    // Read the config file
-                    return std::fs::read_to_string(&config_path)
-                        .map_err(|e| debug!("Failed to read config file {}: {}", config_path, e))
-                        .ok();
-                }
-            }
-        }
-
-        None
-    }
-
-    /// Extract config path from ExecStart line
-    fn extract_config_path_from_exec_start(&self, exec_start: &str) -> Option<String> {
-        use tracing::debug;
-
-        // Remove ExecStart= prefix
-        let exec_part = exec_start.strip_prefix("ExecStart=")?;
-        debug!("Parsing exec part: {}", exec_part);
-
-        // Handle NixOS format: ExecStart={ path=...; argv[]=...nginx -c /config; ... }
-        if exec_part.contains("argv[]=") {
-            // Extract the part after argv[]=
-            let argv_start = exec_part.find("argv[]=")?;
-            let argv_part = &exec_part[argv_start + 7..]; // Skip "argv[]="
-            debug!("Found NixOS argv part: {}", argv_part);
-
-            // Look for -c flag followed by config path
-            if let Some(c_pos) = argv_part.find(" -c ") {
-                let after_c = &argv_part[c_pos + 4..];
-                // Find the config path (until next space or semicolon)
-                let config_path = after_c.split([' ', ';']).next()?;
-                return Some(config_path.to_string());
-            }
-        } else {
-            // Handle traditional format: ExecStart=/path/nginx -c /config
-            debug!("Parsing traditional format");
-            if let Some(c_pos) = exec_part.find(" -c ") {
-                let after_c = &exec_part[c_pos + 4..];
-                let config_path = after_c.split_whitespace().next()?;
-                return Some(config_path.to_string());
-            }
-        }
-
-        None
-    }
-
-    /// Fallback: get nginx config via nginx -T command
-    fn get_nginx_config_via_command(&self) -> Option<String> {
-        use tracing::debug;
-
-        let output = std::process::Command::new("nginx")
-            .args(["-T"])
-            .output()
-            .ok()?;
-
-        if !output.status.success() {
-            debug!("nginx -T failed");
-            return None;
-        }
-
-        Some(String::from_utf8_lossy(&output.stdout).to_string())
-    }
-
-    /// Parse nginx config content to extract server names and build site list
-    fn parse_nginx_config_for_sites(&self, config_content: &str) -> Vec<(String, String)> {
-        use tracing::debug;
-        let mut sites = Vec::new();
-        let lines: Vec<&str> = config_content.lines().collect();
-        let mut i = 0;
-
-        debug!("Parsing nginx config with {} lines", lines.len());
-
-        while i < lines.len() {
-            let line = lines[i].trim();
-            if line.starts_with("server") && line.contains("{") {
-                if let Some(server_name) = self.parse_server_block(&lines, &mut i) {
-                    let url = format!("https://{}", server_name);
-                    sites.push((server_name.clone(), url));
-                }
-            }
-            i += 1;
-        }
-
-        debug!("Discovered {} nginx sites total", sites.len());
-        sites
-    }
-
-    /// Parse a server block to extract the primary server_name
-    fn parse_server_block(&self, lines: &[&str], start_index: &mut usize) -> Option<String> {
-        use tracing::debug;
-        let mut server_names = Vec::new();
-        let mut has_redirect = false;
-        let mut i = *start_index + 1;
-        let mut brace_count = 1;
-
-        // Parse until we close the server block
-        while i < lines.len() && brace_count > 0 {
-            let trimmed = lines[i].trim();
-
-            // Track braces
-            brace_count += trimmed.matches('{').count();
-            brace_count -= trimmed.matches('}').count();
-
-            // Extract server_name
-            if trimmed.starts_with("server_name") {
-                if let Some(names_part) = trimmed.strip_prefix("server_name") {
-                    let names_clean = names_part.trim().trim_end_matches(';');
-                    for name in names_clean.split_whitespace() {
-                        if name != "_"
-                            && !name.is_empty()
-                            && name.contains('.')
-                            && !name.starts_with('$')
-                        {
-                            server_names.push(name.to_string());
-                            debug!("Found server_name in block: {}", name);
+                if let Some(mem_str) = line.strip_prefix("MemoryCurrent=") {
+                    if mem_str != "[not set]" {
+                        if let Ok(memory_bytes) = mem_str.parse::<u64>() {
+                            return Ok(memory_bytes as f32 / (1024.0 * 1024.0)); // Convert to MB
                         }
                     }
                 }
             }
+        }
 
+        Ok(0.0)
+    }
 
-            // Check for redirects (skip redirect-only servers)
-            if trimmed.contains("return") && (trimmed.contains("301") || trimmed.contains("302")) {
-                has_redirect = true;
+    /// Check if service collection cache should be updated
+    fn should_update_cache(&self) -> bool {
+        let state = self.state.read().unwrap();
+        
+        match state.last_collection {
+            None => true,
+            Some(last) => {
+                let cache_duration = std::time::Duration::from_secs(30);
+                last.elapsed() > cache_duration
             }
-
-            i += 1;
         }
+    }
 
-        *start_index = i - 1;
-
-        if !server_names.is_empty() && !has_redirect {
-            return Some(server_names[0].clone());
+    /// Get cached service data if available and fresh
+    fn get_cached_services(&self) -> Option<Vec<ServiceInfo>> {
+        if !self.should_update_cache() {
+            let state = self.state.read().unwrap();
+            Some(state.services.clone())
+        } else {
+            None
         }
-
-        None
     }
 }
+
+#[async_trait]
+impl Collector for SystemdCollector {
+    async fn collect_structured(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        // Use cached data if available and fresh
+        if let Some(cached_services) = self.get_cached_services() {
+            debug!("Using cached systemd services data");
+            for service in cached_services {
+                agent_data.services.push(ServiceData {
+                    name: service.name.clone(),
+                    status: service.status.clone(),
+                    memory_mb: service.memory_mb,
+                    disk_gb: service.disk_gb,
+                    user_stopped: false, // TODO: Integrate with service tracker
+                    service_status: self.calculate_service_status(&service.name, &service.status),
+                });
+            }
+            Ok(())
+        } else {
+            // Collect fresh data
+            self.collect_service_data(agent_data).await
+        }
+    }
+}

agent/src/communication/mod.rs

@@ -1,5 +1,5 @@
 use anyhow::Result;
-use cm_dashboard_shared::{MessageEnvelope, MetricMessage};
+use cm_dashboard_shared::{AgentData, MessageEnvelope};
 use tracing::{debug, info};
 use zmq::{Context, Socket, SocketType};
 
@@ -43,17 +43,17 @@ impl ZmqHandler {
         })
     }
 
-    /// Publish metrics message via ZMQ
-    pub async fn publish_metrics(&self, message: &MetricMessage) -> Result<()> {
+
+    /// Publish agent data via ZMQ
+    pub async fn publish_agent_data(&self, data: &AgentData) -> Result<()> {
         debug!(
-            "Publishing {} metrics for host {}",
-            message.metrics.len(),
-            message.hostname
+            "Publishing agent data for host {}",
+            data.hostname
         );
 
-        // Create message envelope
-        let envelope = MessageEnvelope::metrics(message.clone())
-            .map_err(|e| anyhow::anyhow!("Failed to create message envelope: {}", e))?;
+        // Create message envelope for agent data
+        let envelope = MessageEnvelope::agent_data(data.clone())
+            .map_err(|e| anyhow::anyhow!("Failed to create agent data envelope: {}", e))?;
 
         // Serialize envelope
         let serialized = serde_json::to_vec(&envelope)?;
@@ -61,13 +61,10 @@ impl ZmqHandler {
         // Send via ZMQ
         self.publisher.send(&serialized, 0)?;
 
-        debug!("Published metrics message ({} bytes)", serialized.len());
+        debug!("Published agent data message ({} bytes)", serialized.len());
         Ok(())
     }
 
-
-    /// Send heartbeat (placeholder for future use)
-
     /// Try to receive a command (non-blocking)
     pub fn try_receive_command(&self) -> Result<Option<AgentCommand>> {
         match self.command_receiver.recv_bytes(zmq::DONTWAIT) {
@@ -100,17 +97,4 @@ pub enum AgentCommand {
     ToggleCollector { name: String, enabled: bool },
     /// Request status/health check
     Ping,
-    /// Control systemd service
-    ServiceControl {
-        service_name: String,
-        action: ServiceAction,
-    },
-}
-
-/// Service control actions
-#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
-pub enum ServiceAction {
-    Start,
-    Stop,
-    Status,
 }

agent/src/config/mod.rs

@@ -6,8 +6,6 @@ use std::path::Path;
 pub mod loader;
 pub mod validation;
 
-use crate::status::HostStatusConfig;
-
 /// Main agent configuration
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct AgentConfig {
@@ -15,7 +13,6 @@ pub struct AgentConfig {
     pub collectors: CollectorConfig,
     pub cache: CacheConfig,
     pub notifications: NotificationConfig,
-    pub status_aggregation: HostStatusConfig,
     pub collection_interval_seconds: u64,
 }
 
@@ -25,9 +22,10 @@ pub struct ZmqConfig {
     pub publisher_port: u16,
     pub command_port: u16,
     pub bind_address: String,
-    pub timeout_ms: u64,
-    pub heartbeat_interval_ms: u64,
     pub transmission_interval_seconds: u64,
+    /// Heartbeat transmission interval in seconds for host connectivity detection
+    #[serde(default = "default_heartbeat_interval_seconds")]
+    pub heartbeat_interval_seconds: u64,
 }
 
 /// Collector configuration
@@ -73,7 +71,8 @@ pub struct DiskConfig {
     pub usage_warning_percent: f32,
     /// Disk usage critical threshold (percentage)
     pub usage_critical_percent: f32,
-    /// Filesystem configurations
+    /// Filesystem configurations (optional - auto-discovery used if empty)
+    #[serde(default)]
     pub filesystems: Vec<FilesystemConfig>,
     /// SMART monitoring thresholds
     pub temperature_warning_celsius: f32,
@@ -146,9 +145,23 @@ pub struct NotificationConfig {
     pub rate_limit_minutes: u64,
     /// Email notification batching interval in seconds (default: 60)
     pub aggregation_interval_seconds: u64,
+    /// List of metric names to exclude from email notifications
+    #[serde(default)]
+    pub exclude_email_metrics: Vec<String>,
+    /// Path to maintenance mode file that suppresses email notifications when present
+    #[serde(default = "default_maintenance_mode_file")]
+    pub maintenance_mode_file: String,
 }
 
 
+fn default_heartbeat_interval_seconds() -> u64 {
+    5
+}
+
+fn default_maintenance_mode_file() -> String {
+    "/tmp/cm-maintenance".to_string()
+}
+
 impl AgentConfig {
     pub fn from_file<P: AsRef<Path>>(path: P) -> Result<Self> {
         loader::load_config(path)

agent/src/config/validation.rs

@@ -19,10 +19,6 @@ pub fn validate_config(config: &AgentConfig) -> Result<()> {
         bail!("ZMQ bind address cannot be empty");
     }
 
-    if config.zmq.timeout_ms == 0 {
-        bail!("ZMQ timeout cannot be 0");
-    }
-
     // Validate collection interval
     if config.collection_interval_seconds == 0 {
         bail!("Collection interval cannot be 0");

agent/src/main.rs

@@ -7,9 +7,8 @@ mod agent;
 mod collectors;
 mod communication;
 mod config;
-mod metrics;
 mod notifications;
-mod status;
+mod service_tracker;
 
 use agent::Agent;
 

agent/src/metrics/mod.rs

@@ -232,6 +232,8 @@ impl MetricCollectionManager {
                     }
                     Err(e) => {
                         error!("Collector {} failed: {}", timed_collector.name, e);
+                        // Update last_collection time even on failure to prevent immediate retries
+                        timed_collector.last_collection = Some(now);
                     }
                 }
             }

agent/src/notifications/mod.rs

@@ -59,6 +59,6 @@ impl NotificationManager {
     }
 
     fn is_maintenance_mode(&self) -> bool {
-        std::fs::metadata("/tmp/cm-maintenance").is_ok()
+        std::fs::metadata(&self.config.maintenance_mode_file).is_ok()
     }
 }

agent/src/service_tracker.rs

@@ -0,0 +1,164 @@
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use std::collections::HashSet;
+use std::fs;
+use std::path::Path;
+use std::sync::{Arc, Mutex, OnceLock};
+use tracing::{debug, info, warn};
+
+/// Shared instance for global access
+static GLOBAL_TRACKER: OnceLock<Arc<Mutex<UserStoppedServiceTracker>>> = OnceLock::new();
+
+/// Tracks services that have been stopped by user action
+/// These services should be treated as OK status instead of Warning
+#[derive(Debug)]
+pub struct UserStoppedServiceTracker {
+    /// Set of services stopped by user action
+    user_stopped_services: HashSet<String>,
+    /// Path to persistent storage file
+    storage_path: String,
+}
+
+/// Serializable data structure for persistence
+#[derive(Debug, Serialize, Deserialize)]
+struct UserStoppedData {
+    services: Vec<String>,
+}
+
+impl UserStoppedServiceTracker {
+    /// Create new tracker with default storage path
+    pub fn new() -> Self {
+        Self::with_storage_path("/var/lib/cm-dashboard/user-stopped-services.json")
+    }
+
+    /// Initialize global instance (called by agent)
+    pub fn init_global() -> Result<Self> {
+        let tracker = Self::new();
+        
+        // Set global instance
+        let global_instance = Arc::new(Mutex::new(tracker));
+        if GLOBAL_TRACKER.set(global_instance).is_err() {
+            warn!("Global service tracker was already initialized");
+        }
+        
+        // Return a new instance for the agent to use
+        Ok(Self::new())
+    }
+
+    /// Check if a service is user-stopped (global access for collectors)
+    pub fn is_service_user_stopped(service_name: &str) -> bool {
+        if let Some(global) = GLOBAL_TRACKER.get() {
+            if let Ok(tracker) = global.lock() {
+                tracker.is_user_stopped(service_name)
+            } else {
+                debug!("Failed to lock global service tracker");
+                false
+            }
+        } else {
+            debug!("Global service tracker not initialized");
+            false
+        }
+    }
+
+    /// Update global tracker (called by agent when tracker state changes)
+    pub fn update_global(updated_tracker: &UserStoppedServiceTracker) {
+        if let Some(global) = GLOBAL_TRACKER.get() {
+            if let Ok(mut tracker) = global.lock() {
+                tracker.user_stopped_services = updated_tracker.user_stopped_services.clone();
+            } else {
+                debug!("Failed to lock global service tracker for update");
+            }
+        } else {
+            debug!("Global service tracker not initialized for update");
+        }
+    }
+
+    /// Create new tracker with custom storage path
+    pub fn with_storage_path<P: AsRef<Path>>(storage_path: P) -> Self {
+        let storage_path = storage_path.as_ref().to_string_lossy().to_string();
+        let mut tracker = Self {
+            user_stopped_services: HashSet::new(),
+            storage_path,
+        };
+
+        // Load existing data from storage
+        if let Err(e) = tracker.load_from_storage() {
+            warn!("Failed to load user-stopped services from storage: {}", e);
+            info!("Starting with empty user-stopped services list");
+        }
+
+        tracker
+    }
+
+
+    /// Clear user-stopped flag for a service (when user starts it)
+    pub fn clear_user_stopped(&mut self, service_name: &str) -> Result<()> {
+        if self.user_stopped_services.remove(service_name) {
+            info!("Cleared user-stopped flag for service '{}'", service_name);
+            self.save_to_storage()?;
+            debug!("Service '{}' user-stopped flag cleared and saved to storage", service_name);
+        } else {
+            debug!("Service '{}' was not marked as user-stopped", service_name);
+        }
+        Ok(())
+    }
+
+    /// Check if a service is marked as user-stopped
+    pub fn is_user_stopped(&self, service_name: &str) -> bool {
+        let is_stopped = self.user_stopped_services.contains(service_name);
+        debug!("Service '{}' user-stopped status: {}", service_name, is_stopped);
+        is_stopped
+    }
+
+
+    /// Save current state to persistent storage
+    fn save_to_storage(&self) -> Result<()> {
+        // Create parent directory if it doesn't exist
+        if let Some(parent_dir) = Path::new(&self.storage_path).parent() {
+            if !parent_dir.exists() {
+                fs::create_dir_all(parent_dir)?;
+                debug!("Created parent directory: {}", parent_dir.display());
+            }
+        }
+
+        let data = UserStoppedData {
+            services: self.user_stopped_services.iter().cloned().collect(),
+        };
+
+        let json_data = serde_json::to_string_pretty(&data)?;
+        fs::write(&self.storage_path, json_data)?;
+
+        debug!(
+            "Saved {} user-stopped services to {}",
+            data.services.len(),
+            self.storage_path
+        );
+        Ok(())
+    }
+
+    /// Load state from persistent storage
+    fn load_from_storage(&mut self) -> Result<()> {
+        if !Path::new(&self.storage_path).exists() {
+            debug!("Storage file {} does not exist, starting fresh", self.storage_path);
+            return Ok(());
+        }
+
+        let json_data = fs::read_to_string(&self.storage_path)?;
+        let data: UserStoppedData = serde_json::from_str(&json_data)?;
+
+        self.user_stopped_services = data.services.into_iter().collect();
+
+        info!(
+            "Loaded {} user-stopped services from {}",
+            self.user_stopped_services.len(),
+            self.storage_path
+        );
+
+        if !self.user_stopped_services.is_empty() {
+            debug!("User-stopped services: {:?}", self.user_stopped_services);
+        }
+
+        Ok(())
+    }
+}
+

agent/src/status/mod.rs

@@ -272,11 +272,13 @@ impl HostStatusManager {
     /// Check if a status change is significant enough for notification
     fn is_significant_change(&self, old_status: Status, new_status: Status) -> bool {
         match (old_status, new_status) {
-            // Always notify on problems
+            // Don't notify on transitions from Unknown (startup/restart scenario)
+            (Status::Unknown, _) => false,
+            // Always notify on problems (but not from Unknown)
             (_, Status::Warning) | (_, Status::Critical) => true,
             // Only notify on recovery if it's from a problem state to OK and all services are OK
             (Status::Warning | Status::Critical, Status::Ok) => self.current_host_status == Status::Ok,
-            // Don't notify on startup or other transitions
+            // Don't notify on other transitions
             _ => false,
         }
     }
@@ -374,8 +376,8 @@ impl HostStatusManager {
             details.push('\n');
         }
 
-        // Show recoveries
-        if !recovery_changes.is_empty() {
+        // Show recoveries only if host status is now OK (all services recovered)
+        if !recovery_changes.is_empty() && aggregated.host_status_final == Status::Ok {
             details.push_str(&format!("✅ RECOVERIES ({}):\n", recovery_changes.len()));
             for change in recovery_changes {
                 details.push_str(&format!("  {}\n", change));

agent_stream.log

@@ -0,0 +1,1001 @@
+warning: fields `total_services`, `backup_disk_filesystem_label`, `services_completed_count`, `services_failed_count`, and `services_disabled_count` are never read
+  --> dashboard/src/ui/widgets/backup.rs:22:5
+   |
+14 | pub struct BackupWidget {
+   |            ------------ fields in this struct
+...
+22 |     total_services: Option<i64>,
+   |     ^^^^^^^^^^^^^^
+...
+36 |     backup_disk_filesystem_label: Option<String>,
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+37 |     /// Number of completed services
+38 |     services_completed_count: Option<i64>,
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^
+39 |     /// Number of failed services
+40 |     services_failed_count: Option<i64>,
+   |     ^^^^^^^^^^^^^^^^^^^^^
+41 |     /// Number of disabled services
+42 |     services_disabled_count: Option<i64>,
+   |     ^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `BackupWidget` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
+   = note: `#[warn(dead_code)]` on by default
+
+warning: field `exit_code` is never read
+  --> dashboard/src/ui/widgets/backup.rs:53:5
+   |
+50 | struct ServiceMetricData {
+   |        ----------------- field in this struct
+...
+53 |     exit_code: Option<i64>,
+   |     ^^^^^^^^^
+   |
+   = note: `ServiceMetricData` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
+
+warning: associated function `extract_service_name` is never used
+   --> dashboard/src/ui/widgets/backup.rs:115:8
+    |
+ 58 | impl BackupWidget {
+    | ----------------- associated function in this implementation
+...
+115 |     fn extract_service_name(metric_name: &str) -> Option<String> {
+    |        ^^^^^^^^^^^^^^^^^^^^
+
+warning: method `update_from_metrics` is never used
+   --> dashboard/src/ui/widgets/backup.rs:157:8
+    |
+156 | impl BackupWidget {
+    | ----------------- method in this implementation
+157 |     fn update_from_metrics(&mut self, metrics: &[&Metric]) {
+    |        ^^^^^^^^^^^^^^^^^^^
+
+warning: associated function `extract_service_info` is never used
+  --> dashboard/src/ui/widgets/services.rs:50:8
+   |
+38 | impl ServicesWidget {
+   | ------------------- associated function in this implementation
+...
+50 |     fn extract_service_info(metric_name: &str) -> Option<(String, Option<String>)> {
+   |        ^^^^^^^^^^^^^^^^^^^^
+
+warning: method `update_from_metrics` is never used
+   --> dashboard/src/ui/widgets/services.rs:285:8
+    |
+284 | impl ServicesWidget {
+    | ------------------- method in this implementation
+285 |     fn update_from_metrics(&mut self, metrics: &[&Metric]) {
+    |        ^^^^^^^^^^^^^^^^^^^
+
+warning: field `health_status` is never read
+  --> dashboard/src/ui/widgets/system.rs:53:5
+   |
+43 | struct StoragePool {
+   |        ----------- field in this struct
+...
+53 |     health_status: Status, // Separate status for pool health vs usage
+   |     ^^^^^^^^^^^^^
+   |
+   = note: `StoragePool` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
+
+warning: `cm-dashboard` (bin "cm-dashboard") generated 7 warnings
+    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
+     Running `target/debug/cm-dashboard --headless --raw-data`
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936501,
+  "system": {
+    "cpu": {
+      "load_1min": 1.82,
+      "load_5min": 2.1,
+      "load_15min": 2.1,
+      "frequency_mhz": 3743.09,
+      "temperature_celsius": 55.0
+    },
+    "memory": {
+      "usage_percent": 27.183601,
+      "total_gb": 23.339516,
+      "used_gb": 6.3445206,
+      "available_gb": 16.994995,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.094376,
+          "used_gb": 0.3018875,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.582031,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936502,
+  "system": {
+    "cpu": {
+      "load_1min": 1.82,
+      "load_5min": 2.1,
+      "load_15min": 2.1,
+      "frequency_mhz": 3743.09,
+      "temperature_celsius": 55.0
+    },
+    "memory": {
+      "usage_percent": 27.183601,
+      "total_gb": 23.339516,
+      "used_gb": 6.3445206,
+      "available_gb": 16.994995,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.094376,
+          "used_gb": 0.3018875,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.582031,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936503,
+  "system": {
+    "cpu": {
+      "load_1min": 1.82,
+      "load_5min": 2.1,
+      "load_15min": 2.1,
+      "frequency_mhz": 3743.09,
+      "temperature_celsius": 55.0
+    },
+    "memory": {
+      "usage_percent": 27.183601,
+      "total_gb": 23.339516,
+      "used_gb": 6.3445206,
+      "available_gb": 16.994995,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.094376,
+          "used_gb": 0.3018875,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.582031,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936505,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3600.005,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 26.780334,
+      "total_gb": 23.339516,
+      "used_gb": 6.2504005,
+      "available_gb": 17.089115,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936506,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3600.005,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 26.780334,
+      "total_gb": 23.339516,
+      "used_gb": 6.2504005,
+      "available_gb": 17.089115,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936507,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3600.005,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 26.780334,
+      "total_gb": 23.339516,
+      "used_gb": 6.2504005,
+      "available_gb": 17.089115,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936508,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3600.005,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 26.780334,
+      "total_gb": 23.339516,
+      "used_gb": 6.2504005,
+      "available_gb": 17.089115,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936509,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3638.71,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 27.014532,
+      "total_gb": 23.339516,
+      "used_gb": 6.3050613,
+      "available_gb": 17.034454,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936509,
+  "system": {
+    "cpu": {
+      "load_1min": 0.0,
+      "load_5min": 0.0,
+      "load_15min": 0.0,
+      "frequency_mhz": 0.0,
+      "temperature_celsius": null
+    },
+    "memory": {
+      "usage_percent": 0.0,
+      "total_gb": 0.0,
+      "used_gb": 0.0,
+      "available_gb": 0.0,
+      "swap_total_gb": 0.0,
+      "swap_used_gb": 0.0,
+      "tmpfs": []
+    },
+    "storage": {
+      "drives": [],
+      "pools": []
+    }
+  },
+  "services": [],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936510,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3638.71,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 27.014532,
+      "total_gb": 23.339516,
+      "used_gb": 6.3050613,
+      "available_gb": 17.034454,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936511,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3638.71,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 27.014532,
+      "total_gb": 23.339516,
+      "used_gb": 6.3050613,
+      "available_gb": 17.034454,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+RAW AGENT DATA FROM cmbox:
+{
+  "hostname": "cmbox",
+  "agent_version": "v0.1.133",
+  "timestamp": 1763936512,
+  "system": {
+    "cpu": {
+      "load_1min": 1.75,
+      "load_5min": 2.08,
+      "load_15min": 2.1,
+      "frequency_mhz": 3638.71,
+      "temperature_celsius": 56.0
+    },
+    "memory": {
+      "usage_percent": 27.014532,
+      "total_gb": 23.339516,
+      "used_gb": 6.3050613,
+      "available_gb": 17.034454,
+      "swap_total_gb": 14.634708,
+      "swap_used_gb": 0.17599106,
+      "tmpfs": [
+        {
+          "mount": "/tmp",
+          "usage_percent": 15.095139,
+          "used_gb": 0.30190277,
+          "total_gb": 2.0
+        }
+      ]
+    },
+    "storage": {
+      "drives": [
+        {
+          "name": "nvme0n1",
+          "health": "PASSED",
+          "temperature_celsius": 28.0,
+          "wear_percent": 1.0,
+          "filesystems": [
+            {
+              "mount": "root",
+              "usage_percent": 24.404377,
+              "used_gb": 226.51398,
+              "total_gb": 928.1695
+            },
+            {
+              "mount": "boot",
+              "usage_percent": 10.666672,
+              "used_gb": 0.10645676,
+              "total_gb": 0.9980316
+            }
+          ]
+        }
+      ],
+      "pools": []
+    }
+  },
+  "services": [
+    {
+      "name": "tailscaled",
+      "status": "active",
+      "memory_mb": 25.59375,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    },
+    {
+      "name": "sshd",
+      "status": "active",
+      "memory_mb": 4.3085938,
+      "disk_gb": 0.0,
+      "user_stopped": false
+    }
+  ],
+  "backup": {
+    "status": "unknown",
+    "last_run": null,
+    "next_scheduled": null,
+    "total_size_gb": null,
+    "repository_health": null
+  }
+}
+────────────────────────────────────────────────────────────────────────────────
+Terminated

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.42"
+version = "0.1.142"
 edition = "2021"
 
 [dependencies]
@@ -18,4 +18,5 @@ tracing-subscriber = { workspace = true }
 ratatui = { workspace = true }
 crossterm = { workspace = true }
 toml = { workspace = true }
-gethostname = { workspace = true }
+gethostname = { workspace = true }
+wake-on-lan = "0.2"

dashboard/src/app.rs

@@ -9,24 +9,24 @@ use std::io;
 use std::time::{Duration, Instant};
 use tracing::{debug, error, info, warn};
 
-use crate::communication::{AgentCommand, ServiceAction, ZmqCommandSender, ZmqConsumer};
+use crate::communication::{ZmqConsumer};
 use crate::config::DashboardConfig;
 use crate::metrics::MetricStore;
-use crate::ui::{TuiApp, UiCommand};
+use crate::ui::TuiApp;
 
 pub struct Dashboard {
     zmq_consumer: ZmqConsumer,
-    zmq_command_sender: ZmqCommandSender,
     metric_store: MetricStore,
     tui_app: Option<TuiApp>,
     terminal: Option<Terminal<CrosstermBackend<io::Stdout>>>,
     headless: bool,
+    raw_data: bool,
     initial_commands_sent: std::collections::HashSet<String>,
-    _config: DashboardConfig,
+    config: DashboardConfig,
 }
 
 impl Dashboard {
-    pub async fn new(config_path: Option<String>, headless: bool) -> Result<Self> {
+    pub async fn new(config_path: Option<String>, headless: bool, raw_data: bool) -> Result<Self> {
         info!("Initializing dashboard");
 
         // Load configuration - try default path if not specified
@@ -58,20 +58,9 @@ impl Dashboard {
             }
         };
 
-        // Initialize ZMQ command sender
-        let zmq_command_sender = match ZmqCommandSender::new(&config.zmq) {
-            Ok(sender) => sender,
-            Err(e) => {
-                error!("Failed to initialize ZMQ command sender: {}", e);
-                return Err(e);
-            }
-        };
-
-        // Connect to predefined hosts from configuration
-        let hosts = config.hosts.predefined_hosts.clone();
 
         // Try to connect to hosts but don't fail if none are available
-        match zmq_consumer.connect_to_predefined_hosts(&hosts).await {
+        match zmq_consumer.connect_to_predefined_hosts(&config.hosts).await {
             Ok(_) => info!("Successfully connected to ZMQ hosts"),
             Err(e) => {
                 warn!(
@@ -127,28 +116,24 @@ impl Dashboard {
 
         Ok(Self {
             zmq_consumer,
-            zmq_command_sender,
             metric_store,
             tui_app,
             terminal,
             headless,
+            raw_data,
             initial_commands_sent: std::collections::HashSet::new(),
-            _config: config,
+            config,
         })
     }
 
-    /// Send a command to a specific agent
-    pub async fn send_command(&mut self, hostname: &str, command: AgentCommand) -> Result<()> {
-        self.zmq_command_sender
-            .send_command(hostname, command)
-            .await
-    }
 
     pub async fn run(&mut self) -> Result<()> {
         info!("Starting dashboard main loop");
 
         let mut last_metrics_check = Instant::now();
         let metrics_check_interval = Duration::from_millis(100); // Check for metrics every 100ms
+        let mut last_heartbeat_check = Instant::now();
+        let heartbeat_check_interval = Duration::from_secs(1); // Check for host connectivity every 1 second
 
         loop {
             // Handle terminal events (keyboard input) only if not headless
@@ -158,16 +143,10 @@ impl Dashboard {
                         match event::read() {
                             Ok(event) => {
                                 if let Some(ref mut tui_app) = self.tui_app {
-                                    // Handle input and check for commands
+                                    // Handle input
                                     match tui_app.handle_input(event) {
-                                        Ok(Some(command)) => {
-                                            // Execute the command
-                                            if let Err(e) = self.execute_ui_command(command).await {
-                                                error!("Failed to execute UI command: {}", e);
-                                            }
-                                        }
-                                        Ok(None) => {
-                                            // No command, check if we should quit
+                                        Ok(_) => {
+                                            // Check if we should quit
                                             if tui_app.should_quit() {
                                                 info!("Quit requested, exiting dashboard");
                                                 break;
@@ -191,50 +170,50 @@ impl Dashboard {
                         break;
                     }
                 }
+
+                // Render UI immediately after handling input for responsive feedback
+                if let Some(ref mut terminal) = self.terminal {
+                    if let Some(ref mut tui_app) = self.tui_app {
+                        if let Err(e) = terminal.draw(|frame| {
+                            tui_app.render(frame, &self.metric_store);
+                        }) {
+                            error!("Error rendering TUI after input: {}", e);
+                        }
+                    }
+                }
             }
 
             // Check for new metrics
             if last_metrics_check.elapsed() >= metrics_check_interval {
-                if let Ok(Some(metric_message)) = self.zmq_consumer.receive_metrics().await {
+                if let Ok(Some(agent_data)) = self.zmq_consumer.receive_agent_data().await {
                     debug!(
-                        "Received metrics from {}: {} metrics",
-                        metric_message.hostname,
-                        metric_message.metrics.len()
+                        "Received agent data from {}",
+                        agent_data.hostname
                     );
 
-                    // Check if this is the first time we've seen this host
+                    // Track first contact with host (no command needed - agent sends data every 2s)
                     let is_new_host = !self
                         .initial_commands_sent
-                        .contains(&metric_message.hostname);
+                        .contains(&agent_data.hostname);
 
                     if is_new_host {
                         info!(
-                            "First contact with host {}, sending initial CollectNow command",
-                            metric_message.hostname
+                            "First contact with host {} - data will update automatically",
+                            agent_data.hostname
                         );
-
-                        // Send CollectNow command for immediate refresh
-                        if let Err(e) = self
-                            .send_command(&metric_message.hostname, AgentCommand::CollectNow)
-                            .await
-                        {
-                            error!(
-                                "Failed to send initial CollectNow command to {}: {}",
-                                metric_message.hostname, e
-                            );
-                        } else {
-                            info!(
-                                "✓ Sent initial CollectNow command to {}",
-                                metric_message.hostname
-                            );
-                            self.initial_commands_sent
-                                .insert(metric_message.hostname.clone());
-                        }
+                        self.initial_commands_sent
+                            .insert(agent_data.hostname.clone());
                     }
 
-                    // Update metric store
-                    self.metric_store
-                        .update_metrics(&metric_message.hostname, metric_message.metrics);
+                    // Show raw data if requested (before processing)
+                    if self.raw_data {
+                        println!("RAW AGENT DATA FROM {}:", agent_data.hostname);
+                        println!("{}", serde_json::to_string_pretty(&agent_data).unwrap_or_else(|e| format!("Serialization error: {}", e)));
+                        println!("{}", "─".repeat(80));
+                    }
+
+                    // Store structured data directly
+                    self.metric_store.store_agent_data(agent_data);
 
                     // Check for agent version mismatches across hosts
                     if let Some((current_version, outdated_hosts)) = self.metric_store.get_version_mismatches() {
@@ -243,14 +222,8 @@ impl Dashboard {
                         }
                     }
 
-                    // Update TUI with new hosts and metrics (only if not headless)
+                    // Update TUI with new metrics (only if not headless)
                     if let Some(ref mut tui_app) = self.tui_app {
-                        let connected_hosts = self
-                            .metric_store
-                            .get_connected_hosts(Duration::from_secs(30));
-                        
-                        
-                        tui_app.update_hosts(connected_hosts);
                         tui_app.update_metrics(&self.metric_store);
                     }
                 }
@@ -269,6 +242,20 @@ impl Dashboard {
                 last_metrics_check = Instant::now();
             }
 
+            // Check for host connectivity changes (heartbeat timeouts) periodically
+            if last_heartbeat_check.elapsed() >= heartbeat_check_interval {
+                let timeout = Duration::from_secs(self.config.zmq.heartbeat_timeout_seconds);
+                
+                // Clean up metrics for offline hosts
+                self.metric_store.cleanup_offline_hosts(timeout);
+                
+                if let Some(ref mut tui_app) = self.tui_app {
+                    let connected_hosts = self.metric_store.get_connected_hosts(timeout);
+                    tui_app.update_hosts(connected_hosts);
+                }
+                last_heartbeat_check = Instant::now();
+            }
+
             // Render TUI (only if not headless)
             if !self.headless {
                 if let Some(ref mut terminal) = self.terminal {
@@ -291,33 +278,6 @@ impl Dashboard {
         Ok(())
     }
 
-    /// Execute a UI command by sending it to the appropriate agent
-    async fn execute_ui_command(&self, command: UiCommand) -> Result<()> {
-        match command {
-            UiCommand::ServiceStart { hostname, service_name } => {
-                info!("Sending start command for service {} on {}", service_name, hostname);
-                let agent_command = AgentCommand::ServiceControl {
-                    service_name: service_name.clone(),
-                    action: ServiceAction::Start,
-                };
-                self.zmq_command_sender.send_command(&hostname, agent_command).await?;
-            }
-            UiCommand::ServiceStop { hostname, service_name } => {
-                info!("Sending stop command for service {} on {}", service_name, hostname);
-                let agent_command = AgentCommand::ServiceControl {
-                    service_name: service_name.clone(),
-                    action: ServiceAction::Stop,
-                };
-                self.zmq_command_sender.send_command(&hostname, agent_command).await?;
-            }
-            UiCommand::TriggerBackup { hostname } => {
-                info!("Trigger backup requested for {}", hostname);
-                // TODO: Implement backup trigger command
-                info!("Backup trigger not yet implemented");
-            }
-        }
-        Ok(())
-    }
 
 }
 

dashboard/src/communication/mod.rs

@@ -1,42 +1,10 @@
 use anyhow::Result;
-use cm_dashboard_shared::{CommandOutputMessage, MessageEnvelope, MessageType, MetricMessage};
+use cm_dashboard_shared::{AgentData, CommandOutputMessage, MessageEnvelope, MessageType};
 use tracing::{debug, error, info, warn};
 use zmq::{Context, Socket, SocketType};
 
 use crate::config::ZmqConfig;
 
-/// Commands that can be sent to agents
-#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
-pub enum AgentCommand {
-    /// Request immediate metric collection
-    CollectNow,
-    /// Change collection interval
-    SetInterval { seconds: u64 },
-    /// Enable/disable a collector
-    ToggleCollector { name: String, enabled: bool },
-    /// Request status/health check
-    Ping,
-    /// Control systemd service
-    ServiceControl {
-        service_name: String,
-        action: ServiceAction,
-    },
-    /// Rebuild NixOS system
-    SystemRebuild {
-        git_url: String,
-        git_branch: String,
-        working_dir: String,
-        api_key_file: Option<String>,
-    },
-}
-
-/// Service control actions
-#[derive(Debug, Clone, serde::Deserialize, serde::Serialize)]
-pub enum ServiceAction {
-    Start,
-    Stop,
-    Status,
-}
 
 /// ZMQ consumer for receiving metrics from agents
 pub struct ZmqConsumer {
@@ -82,13 +50,14 @@ impl ZmqConsumer {
         }
     }
 
-    /// Connect to predefined hosts
-    pub async fn connect_to_predefined_hosts(&mut self, hosts: &[String]) -> Result<()> {
+
+    /// Connect to predefined hosts using their configuration
+    pub async fn connect_to_predefined_hosts(&mut self, hosts: &std::collections::HashMap<String, crate::config::HostDetails>) -> Result<()> {
         let default_port = self.config.subscriber_ports[0];
 
-        for hostname in hosts {
-            // Try to connect, but don't fail if some hosts are unreachable
-            if let Err(e) = self.connect_to_host(hostname, default_port).await {
+        for (hostname, host_details) in hosts {
+            // Try to connect using configured IP, but don't fail if some hosts are unreachable
+            if let Err(e) = self.connect_to_host_with_details(hostname, host_details, default_port).await {
                 warn!("Could not connect to {}: {}", hostname, e);
             }
         }
@@ -102,6 +71,15 @@ impl ZmqConsumer {
         Ok(())
     }
 
+    /// Connect to a host using its configuration details
+    pub async fn connect_to_host_with_details(&mut self, hostname: &str, host_details: &crate::config::HostDetails, port: u16) -> Result<()> {
+        // Get primary connection IP only - no fallbacks
+        let primary_ip = host_details.get_connection_ip(hostname);
+        
+        // Connect directly without fallback attempts
+        self.connect_to_host(&primary_ip, port).await
+    }
+
     /// Receive command output from any connected agent (non-blocking)  
     pub async fn receive_command_output(&mut self) -> Result<Option<CommandOutputMessage>> {
         match self.subscriber.recv_bytes(zmq::DONTWAIT) {
@@ -139,8 +117,8 @@ impl ZmqConsumer {
         }
     }
 
-    /// Receive metrics from any connected agent (non-blocking)
-    pub async fn receive_metrics(&mut self) -> Result<Option<MetricMessage>> {
+    /// Receive agent data (non-blocking)
+    pub async fn receive_agent_data(&mut self) -> Result<Option<AgentData>> {
         match self.subscriber.recv_bytes(zmq::DONTWAIT) {
             Ok(data) => {
                 debug!("Received {} bytes from ZMQ", data.len());
@@ -151,29 +129,27 @@ impl ZmqConsumer {
 
                 // Check message type
                 match envelope.message_type {
-                    MessageType::Metrics => {
-                        let metrics = envelope
-                            .decode_metrics()
-                            .map_err(|e| anyhow::anyhow!("Failed to decode metrics: {}", e))?;
+                    MessageType::AgentData => {
+                        let agent_data = envelope
+                            .decode_agent_data()
+                            .map_err(|e| anyhow::anyhow!("Failed to decode agent data: {}", e))?;
 
                         debug!(
-                            "Received {} metrics from {}",
-                            metrics.metrics.len(),
-                            metrics.hostname
+                            "Received agent data from host {}",
+                            agent_data.hostname
                         );
-
-                        Ok(Some(metrics))
+                        Ok(Some(agent_data))
                     }
                     MessageType::Heartbeat => {
                         debug!("Received heartbeat");
-                        Ok(None) // Don't return heartbeats as metrics
+                        Ok(None) // Don't return heartbeats
                     }
                     MessageType::CommandOutput => {
                         debug!("Received command output (will be handled by receive_command_output)");
                         Ok(None) // Command output handled by separate method
                     }
                     _ => {
-                        debug!("Received non-metrics message: {:?}", envelope.message_type);
+                        debug!("Received unsupported message: {:?}", envelope.message_type);
                         Ok(None)
                     }
                 }
@@ -188,44 +164,6 @@ impl ZmqConsumer {
             }
         }
     }
+
 }
 
-/// ZMQ command sender for sending commands to agents
-pub struct ZmqCommandSender {
-    context: Context,
-}
-
-impl ZmqCommandSender {
-    pub fn new(_config: &ZmqConfig) -> Result<Self> {
-        let context = Context::new();
-
-        info!("ZMQ command sender initialized");
-
-        Ok(Self { context })
-    }
-
-    /// Send a command to a specific agent
-    pub async fn send_command(&self, hostname: &str, command: AgentCommand) -> Result<()> {
-        // Create a new PUSH socket for this command (ZMQ best practice)
-        let socket = self.context.socket(SocketType::PUSH)?;
-
-        // Set socket options
-        socket.set_linger(1000)?; // Wait up to 1 second on close
-        socket.set_sndtimeo(5000)?; // 5 second send timeout
-
-        // Connect to agent's command port (6131)
-        let address = format!("tcp://{}:6131", hostname);
-        socket.connect(&address)?;
-
-        // Serialize command
-        let serialized = serde_json::to_vec(&command)?;
-
-        // Send command
-        socket.send(&serialized, 0)?;
-
-        info!("Sent command {:?} to agent at {}", command, hostname);
-
-        // Socket will be automatically closed when dropped
-        Ok(())
-    }
-}

dashboard/src/config/mod.rs

@@ -6,21 +6,40 @@ use std::path::Path;
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct DashboardConfig {
     pub zmq: ZmqConfig,
-    pub hosts: HostsConfig,
+    pub hosts: std::collections::HashMap<String, HostDetails>,
     pub system: SystemConfig,
     pub ssh: SshConfig,
+    pub service_logs: std::collections::HashMap<String, Vec<ServiceLogConfig>>,
 }
 
 /// ZMQ consumer configuration
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ZmqConfig {
     pub subscriber_ports: Vec<u16>,
+    /// Heartbeat timeout in seconds - hosts considered offline if no heartbeat received within this time
+    #[serde(default = "default_heartbeat_timeout_seconds")]
+    pub heartbeat_timeout_seconds: u64,
 }
 
-/// Hosts configuration
+fn default_heartbeat_timeout_seconds() -> u64 {
+    10 // Default to 10 seconds - allows for multiple missed heartbeats
+}
+
+/// Individual host configuration details
 #[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct HostsConfig {
-    pub predefined_hosts: Vec<String>,
+pub struct HostDetails {
+    pub mac_address: Option<String>,
+    /// Primary IP address (local network)
+    pub ip: Option<String>,
+}
+
+
+impl HostDetails {
+    /// Get the IP address for connection (uses ip field or hostname as fallback)
+    pub fn get_connection_ip(&self, hostname: &str) -> String {
+        self.ip.as_ref().unwrap_or(&hostname.to_string()).clone()
+    }
+
 }
 
 /// System configuration
@@ -32,11 +51,19 @@ pub struct SystemConfig {
     pub nixos_config_api_key_file: Option<String>,
 }
 
-/// SSH configuration for rebuild operations
+/// SSH configuration for rebuild and backup operations
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct SshConfig {
     pub rebuild_user: String,
-    pub rebuild_alias: String,
+    pub rebuild_cmd: String,
+    pub service_manage_cmd: String,
+}
+
+/// Service log file configuration per host
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ServiceLogConfig {
+    pub service_name: String,
+    pub log_file_path: String,
 }
 
 impl DashboardConfig {
@@ -60,8 +87,3 @@ impl Default for ZmqConfig {
     }
 }
 
-impl Default for HostsConfig {
-    fn default() -> Self {
-        panic!("Dashboard configuration must be loaded from file - no hardcoded defaults allowed")
-    }
-}

dashboard/src/main.rs

@@ -12,10 +12,6 @@ mod ui;
 
 use app::Dashboard;
 
-/// Get hardcoded version
-fn get_version() -> &'static str {
-    "v0.1.42"
-}
 
 /// Check if running inside tmux session
 fn check_tmux_session() {
@@ -42,7 +38,7 @@ fn check_tmux_session() {
 #[derive(Parser)]
 #[command(name = "cm-dashboard")]
 #[command(about = "CM Dashboard TUI with individual metric consumption")]
-#[command(version = get_version())]
+#[command(version)]
 struct Cli {
     /// Increase logging verbosity (-v, -vv)
     #[arg(short, long, action = clap::ArgAction::Count)]
@@ -55,6 +51,10 @@ struct Cli {
     /// Run in headless mode (no TUI, just logging)
     #[arg(long)]
     headless: bool,
+
+    /// Show raw agent data in headless mode
+    #[arg(long)]
+    raw_data: bool,
 }
 
 #[tokio::main]
@@ -90,7 +90,7 @@ async fn main() -> Result<()> {
     }
 
     // Create and run dashboard
-    let mut dashboard = Dashboard::new(cli.config, cli.headless).await?;
+    let mut dashboard = Dashboard::new(cli.config, cli.headless, cli.raw_data).await?;
 
     // Setup graceful shutdown
     let ctrl_c = async {

dashboard/src/metrics/store.rs

@@ -1,4 +1,4 @@
-use cm_dashboard_shared::Metric;
+use cm_dashboard_shared::AgentData;
 use std::collections::HashMap;
 use std::time::{Duration, Instant};
 use tracing::{debug, info, warn};
@@ -7,12 +7,12 @@ use super::MetricDataPoint;
 
 /// Central metric storage for the dashboard
 pub struct MetricStore {
-    /// Current metrics: hostname -> metric_name -> metric
-    current_metrics: HashMap<String, HashMap<String, Metric>>,
+    /// Current structured data: hostname -> AgentData
+    current_agent_data: HashMap<String, AgentData>,
     /// Historical metrics for trending
     historical_metrics: HashMap<String, Vec<MetricDataPoint>>,
-    /// Last update timestamp per host
-    last_update: HashMap<String, Instant>,
+    /// Last heartbeat timestamp per host
+    last_heartbeat: HashMap<String, Instant>,
     /// Configuration
     max_metrics_per_host: usize,
     history_retention: Duration,
@@ -21,89 +21,91 @@ pub struct MetricStore {
 impl MetricStore {
     pub fn new(max_metrics_per_host: usize, history_retention_hours: u64) -> Self {
         Self {
-            current_metrics: HashMap::new(),
+            current_agent_data: HashMap::new(),
             historical_metrics: HashMap::new(),
-            last_update: HashMap::new(),
+            last_heartbeat: HashMap::new(),
             max_metrics_per_host,
             history_retention: Duration::from_secs(history_retention_hours * 3600),
         }
     }
 
-    /// Update metrics for a specific host
-    pub fn update_metrics(&mut self, hostname: &str, metrics: Vec<Metric>) {
+
+    /// Store structured agent data directly
+    pub fn store_agent_data(&mut self, agent_data: AgentData) {
         let now = Instant::now();
+        let hostname = agent_data.hostname.clone();
 
-        debug!("Updating {} metrics for host {}", metrics.len(), hostname);
+        debug!("Storing structured data for host {}", hostname);
 
-        // Get or create host entry
-        let host_metrics = self
-            .current_metrics
-            .entry(hostname.to_string())
-            .or_insert_with(HashMap::new);
+        // Store the structured data directly
+        self.current_agent_data.insert(hostname.clone(), agent_data);
 
-        // Get or create historical entry
+        // Update heartbeat timestamp
+        self.last_heartbeat.insert(hostname.clone(), now);
+        debug!("Updated heartbeat for host {}", hostname);
+
+        // Add to history
         let host_history = self
             .historical_metrics
-            .entry(hostname.to_string())
+            .entry(hostname.clone())
             .or_insert_with(Vec::new);
+        host_history.push(MetricDataPoint { received_at: now });
 
-        // Update current metrics and add to history
-        for metric in metrics {
-            let metric_name = metric.name.clone();
+        // Cleanup old data
+        self.cleanup_host_data(&hostname);
 
-            // Store current metric
-            host_metrics.insert(metric_name.clone(), metric.clone());
-
-            // Add to history
-            host_history.push(MetricDataPoint { received_at: now });
-        }
-
-        // Update last update timestamp
-        self.last_update.insert(hostname.to_string(), now);
-
-        // Get metrics count before cleanup
-        let metrics_count = host_metrics.len();
-
-        // Cleanup old history and enforce limits
-        self.cleanup_host_data(hostname);
-
-        info!(
-            "Updated metrics for {}: {} current metrics",
-            hostname, metrics_count
-        );
-    }
-
-    /// Get current metric for a specific host
-    pub fn get_metric(&self, hostname: &str, metric_name: &str) -> Option<&Metric> {
-        self.current_metrics.get(hostname)?.get(metric_name)
+        info!("Stored structured data for {}", hostname);
     }
 
 
-    /// Get all current metrics for a host as a vector
-    pub fn get_metrics_for_host(&self, hostname: &str) -> Vec<&Metric> {
-        if let Some(metrics_map) = self.current_metrics.get(hostname) {
-            metrics_map.values().collect()
-        } else {
-            Vec::new()
-        }
+
+
+    /// Get current structured data for a host
+    pub fn get_agent_data(&self, hostname: &str) -> Option<&AgentData> {
+        self.current_agent_data.get(hostname)
     }
 
-    /// Get connected hosts (hosts with recent updates)
+
+    /// Get connected hosts (hosts with recent heartbeats)
     pub fn get_connected_hosts(&self, timeout: Duration) -> Vec<String> {
         let now = Instant::now();
 
-        self.last_update
+        self.last_heartbeat
             .iter()
-            .filter_map(|(hostname, &last_update)| {
-                if now.duration_since(last_update) <= timeout {
+            .filter_map(|(hostname, &last_heartbeat)| {
+                if now.duration_since(last_heartbeat) <= timeout {
                     Some(hostname.clone())
                 } else {
+                    debug!("Host {} considered offline - last heartbeat was {:?} ago", 
+                           hostname, now.duration_since(last_heartbeat));
                     None
                 }
             })
             .collect()
     }
 
+    /// Clean up data for offline hosts
+    pub fn cleanup_offline_hosts(&mut self, timeout: Duration) {
+        let now = Instant::now();
+        let mut hosts_to_cleanup = Vec::new();
+
+        // Find hosts that are offline (no recent heartbeat)
+        for (hostname, &last_heartbeat) in &self.last_heartbeat {
+            if now.duration_since(last_heartbeat) > timeout {
+                hosts_to_cleanup.push(hostname.clone());
+            }
+        }
+
+        // Clear data for offline hosts
+        for hostname in hosts_to_cleanup {
+            if let Some(_agent_data) = self.current_agent_data.remove(&hostname) {
+                info!("Cleared structured data for offline host: {}", hostname);
+            }
+            // Keep heartbeat timestamp for reconnection detection
+            // Don't remove from last_heartbeat to track when host was last seen
+        }
+    }
+
     /// Cleanup old data and enforce limits
     fn cleanup_host_data(&mut self, hostname: &str) {
         let now = Instant::now();
@@ -129,12 +131,8 @@ impl MetricStore {
     pub fn get_agent_versions(&self) -> HashMap<String, String> {
         let mut versions = HashMap::new();
         
-        for (hostname, metrics) in &self.current_metrics {
-            if let Some(version_metric) = metrics.get("agent_version") {
-                if let cm_dashboard_shared::MetricValue::String(version) = &version_metric.value {
-                    versions.insert(hostname.clone(), version.clone());
-                }
-            }
+        for (hostname, agent_data) in &self.current_agent_data {
+            versions.insert(hostname.clone(), agent_data.agent_version.clone());
         }
         
         versions

dashboard/src/ui/mod.rs

@@ -9,32 +9,19 @@ use ratatui::{
 use std::collections::HashMap;
 use std::time::Instant;
 use tracing::info;
+use wake_on_lan::MagicPacket;
 
 pub mod theme;
 pub mod widgets;
 
 use crate::config::DashboardConfig;
 use crate::metrics::MetricStore;
-use cm_dashboard_shared::{Metric, Status};
+use cm_dashboard_shared::Status;
 use theme::{Components, Layout as ThemeLayout, Theme, Typography};
 use widgets::{BackupWidget, ServicesWidget, SystemWidget, Widget};
 
-/// Commands that can be triggered from the UI
-#[derive(Debug, Clone)]
-pub enum UiCommand {
-    ServiceStart { hostname: String, service_name: String },
-    ServiceStop { hostname: String, service_name: String },
-    TriggerBackup { hostname: String },
-}
 
 
-/// Types of commands for status tracking
-#[derive(Debug, Clone)]
-pub enum CommandType {
-    ServiceStart,
-    ServiceStop,
-    BackupTrigger,
-}
 
 /// Panel types for focus management
 
@@ -47,14 +34,8 @@ pub struct HostWidgets {
     pub services_widget: ServicesWidget,
     /// Backup widget state
     pub backup_widget: BackupWidget,
-    /// Scroll offsets for each panel
-    pub system_scroll_offset: usize,
-    pub services_scroll_offset: usize,
-    pub backup_scroll_offset: usize,
     /// Last update time for this host
     pub last_update: Option<Instant>,
-    /// Pending service transitions for immediate visual feedback
-    pub pending_service_transitions: HashMap<String, (CommandType, String, Instant)>, // service_name -> (command_type, original_status, start_time)
 }
 
 impl HostWidgets {
@@ -63,11 +44,7 @@ impl HostWidgets {
             system_widget: SystemWidget::new(),
             services_widget: ServicesWidget::new(),
             backup_widget: BackupWidget::new(),
-            system_scroll_offset: 0,
-            services_scroll_offset: 0,
-            backup_scroll_offset: 0,
             last_update: None,
-            pending_service_transitions: HashMap::new(),
         }
     }
 }
@@ -89,19 +66,33 @@ pub struct TuiApp {
     user_navigated_away: bool,
     /// Dashboard configuration
     config: DashboardConfig,
+    /// Cached localhost hostname to avoid repeated system calls
+    localhost: String,
 }
 
 impl TuiApp {
     pub fn new(config: DashboardConfig) -> Self {
-        Self {
+        let localhost = gethostname::gethostname().to_string_lossy().to_string();
+        let mut app = Self {
             host_widgets: HashMap::new(),
             current_host: None,
-            available_hosts: Vec::new(),
+            available_hosts: config.hosts.keys().cloned().collect(),
             host_index: 0,
             should_quit: false,
             user_navigated_away: false,
             config,
+            localhost,
+        };
+        
+        // Sort predefined hosts
+        app.available_hosts.sort();
+        
+        // Initialize with first host if available
+        if !app.available_hosts.is_empty() {
+            app.current_host = Some(app.available_hosts[0].clone());
         }
+        
+        app
     }
 
     /// Get or create host widgets for the given hostname
@@ -111,74 +102,17 @@ impl TuiApp {
             .or_insert_with(HostWidgets::new)
     }
 
-    /// Update widgets with metrics from store (only for current host)
+    /// Update widgets with structured data from store (only for current host)
     pub fn update_metrics(&mut self, metric_store: &MetricStore) {
-        
-        // Check for rebuild completion by agent hash change
-        
         if let Some(hostname) = self.current_host.clone() {
-            // Only update widgets if we have metrics for this host
-            let all_metrics = metric_store.get_metrics_for_host(&hostname);
-            if !all_metrics.is_empty() {
-                // Get metrics first while hostname is borrowed
-                let cpu_metrics: Vec<&Metric> = all_metrics
-                    .iter()
-                    .filter(|m| {
-                        m.name.starts_with("cpu_")
-                            || m.name.contains("c_state_")
-                            || m.name.starts_with("process_top_")
-                    })
-                    .copied()
-                    .collect();
-                let memory_metrics: Vec<&Metric> = all_metrics
-                    .iter()
-                    .filter(|m| m.name.starts_with("memory_") || m.name.starts_with("disk_tmp_"))
-                    .copied()
-                    .collect();
-                let service_metrics: Vec<&Metric> = all_metrics
-                    .iter()
-                    .filter(|m| m.name.starts_with("service_"))
-                    .copied()
-                    .collect();
-                let all_backup_metrics: Vec<&Metric> = all_metrics
-                    .iter()
-                    .filter(|m| m.name.starts_with("backup_"))
-                    .copied()
-                    .collect();
-
-                // Clear completed transitions first
-                self.clear_completed_transitions(&hostname, &service_metrics);
-
-                // Now get host widgets and update them
+            // Get structured data for this host
+            if let Some(agent_data) = metric_store.get_agent_data(&hostname) {
                 let host_widgets = self.get_or_create_host_widgets(&hostname);
 
-                // Collect all system metrics (CPU, memory, NixOS, disk/storage)
-                let mut system_metrics = cpu_metrics;
-                system_metrics.extend(memory_metrics);
-                
-                // Add NixOS metrics - using exact matching for build display fix
-                let nixos_metrics: Vec<&Metric> = all_metrics
-                    .iter()
-                    .filter(|m| m.name == "system_nixos_build" || m.name == "system_active_users" || m.name == "agent_version")
-                    .copied()
-                    .collect();
-                system_metrics.extend(nixos_metrics);
-                
-                // Add disk/storage metrics
-                let disk_metrics: Vec<&Metric> = all_metrics
-                    .iter()
-                    .filter(|m| m.name.starts_with("disk_"))
-                    .copied()
-                    .collect();
-                system_metrics.extend(disk_metrics);
-
-                host_widgets.system_widget.update_from_metrics(&system_metrics);
-                host_widgets
-                    .services_widget
-                    .update_from_metrics(&service_metrics);
-                host_widgets
-                    .backup_widget
-                    .update_from_metrics(&all_backup_metrics);
+                // Update all widgets with structured data directly
+                host_widgets.system_widget.update_from_agent_data(agent_data);
+                host_widgets.services_widget.update_from_agent_data(agent_data);
+                host_widgets.backup_widget.update_from_agent_data(agent_data);
 
                 host_widgets.last_update = Some(Instant::now());
             }
@@ -186,30 +120,28 @@ impl TuiApp {
     }
 
     /// Update available hosts with localhost prioritization
-    pub fn update_hosts(&mut self, hosts: Vec<String>) {
-        // Sort hosts alphabetically
-        let mut sorted_hosts = hosts.clone();
+    pub fn update_hosts(&mut self, discovered_hosts: Vec<String>) {
+        // Start with configured hosts (always visible)
+        let mut all_hosts: Vec<String> = self.config.hosts.keys().cloned().collect();
         
-        // Keep hosts that have pending transitions even if they're offline
-        for (hostname, host_widgets) in &self.host_widgets {
-            if !host_widgets.pending_service_transitions.is_empty() {
-                if !sorted_hosts.contains(hostname) {
-                    sorted_hosts.push(hostname.clone());
-                }
+        // Add any discovered hosts that aren't already configured
+        for host in discovered_hosts {
+            if !all_hosts.contains(&host) {
+                all_hosts.push(host);
             }
         }
         
-        sorted_hosts.sort();
-        self.available_hosts = sorted_hosts;
+        
+        all_hosts.sort();
+        self.available_hosts = all_hosts;
         
         // Get the current hostname (localhost) for auto-selection
-        let localhost = gethostname::gethostname().to_string_lossy().to_string();
         if !self.available_hosts.is_empty() {
-            if self.available_hosts.contains(&localhost) && !self.user_navigated_away {
+            if self.available_hosts.contains(&self.localhost) && !self.user_navigated_away {
                 // Localhost is available and user hasn't navigated away - switch to it
-                self.current_host = Some(localhost.clone());
+                self.current_host = Some(self.localhost.clone());
                 // Find the actual index of localhost in the sorted list
-                self.host_index = self.available_hosts.iter().position(|h| h == &localhost).unwrap_or(0);
+                self.host_index = self.available_hosts.iter().position(|h| h == &self.localhost).unwrap_or(0);
             } else if self.current_host.is_none() {
                 // No current host - select first available (which is localhost if available)
                 self.current_host = Some(self.available_hosts[0].clone());
@@ -229,7 +161,7 @@ impl TuiApp {
     }
 
     /// Handle keyboard input
-    pub fn handle_input(&mut self, event: Event) -> Result<Option<UiCommand>> {
+    pub fn handle_input(&mut self, event: Event) -> Result<()> {
         if let Event::Key(key) = event {
             match key.code {
                 KeyCode::Char('q') => {
@@ -244,48 +176,167 @@ impl TuiApp {
                 KeyCode::Char('r') => {
                     // System rebuild command - works on any panel for current host
                     if let Some(hostname) = self.current_host.clone() {
-                        // Create command that shows CM Dashboard logo and then rebuilds
+                        let connection_ip = self.get_connection_ip(&hostname);
+                        // Create command that shows logo, rebuilds, and waits for user input
                         let logo_and_rebuild = format!(
-                            r"cat << 'EOF'
-NixOS System Rebuild
-Target: {}
-
-EOF
-ssh -tt {}@{} 'bash -ic {}'",
+                            "echo 'Rebuilding system: {} ({})' && ssh -tt {}@{} \"bash -ic '{}'\"",
                             hostname,
+                            connection_ip,
                             self.config.ssh.rebuild_user,
-                            hostname,
-                            self.config.ssh.rebuild_alias
+                            connection_ip,
+                            self.config.ssh.rebuild_cmd
                         );
                         
                         std::process::Command::new("tmux")
-                            .arg("display-popup")
+                            .arg("split-window")
+                            .arg("-v")
+                            .arg("-p")
+                            .arg("30")
                             .arg(&logo_and_rebuild)
                             .spawn()
                             .ok(); // Ignore errors, tmux will handle them
                     }
                 }
+                KeyCode::Char('B') => {
+                    // Backup command - works on any panel for current host
+                    if let Some(hostname) = self.current_host.clone() {
+                        let connection_ip = self.get_connection_ip(&hostname);
+                        // Create command that shows logo, runs backup, and waits for user input
+                        let logo_and_backup = format!(
+                            "echo 'Running backup: {} ({})' && ssh -tt {}@{} \"bash -ic '{}'\"",
+                            hostname,
+                            connection_ip,
+                            self.config.ssh.rebuild_user,
+                            connection_ip,
+                            format!("{} start borgbackup", self.config.ssh.service_manage_cmd)
+                        );
+                        
+                        std::process::Command::new("tmux")
+                            .arg("split-window")
+                            .arg("-v")
+                            .arg("-p")
+                            .arg("30")
+                            .arg(&logo_and_backup)
+                            .spawn()
+                            .ok(); // Ignore errors, tmux will handle them
+                    }
+                }
                 KeyCode::Char('s') => {
-                    // Service start command
+                    // Service start command via SSH with progress display
                     if let (Some(service_name), Some(hostname)) = (self.get_selected_service(), self.current_host.clone()) {
-                        if self.start_command(&hostname, CommandType::ServiceStart, service_name.clone()) {
-                            return Ok(Some(UiCommand::ServiceStart { hostname, service_name }));
-                        }
+                        let connection_ip = self.get_connection_ip(&hostname);
+                        let service_start_command = format!(
+                            "echo 'Starting service: {} on {}' && ssh -tt {}@{} \"bash -ic '{} start {}'\"",
+                            service_name,
+                            hostname,
+                            self.config.ssh.rebuild_user,
+                            connection_ip,
+                            self.config.ssh.service_manage_cmd,
+                            service_name
+                        );
+                        
+                        std::process::Command::new("tmux")
+                            .arg("split-window")
+                            .arg("-v")
+                            .arg("-p")
+                            .arg("30")
+                            .arg(&service_start_command)
+                            .spawn()
+                            .ok(); // Ignore errors, tmux will handle them
                     }
                 }
                 KeyCode::Char('S') => {
-                    // Service stop command
+                    // Service stop command via SSH with progress display
                     if let (Some(service_name), Some(hostname)) = (self.get_selected_service(), self.current_host.clone()) {
-                        if self.start_command(&hostname, CommandType::ServiceStop, service_name.clone()) {
-                            return Ok(Some(UiCommand::ServiceStop { hostname, service_name }));
+                        let connection_ip = self.get_connection_ip(&hostname);
+                        let service_stop_command = format!(
+                            "echo 'Stopping service: {} on {}' && ssh -tt {}@{} \"bash -ic '{} stop {}'\"",
+                            service_name,
+                            hostname,
+                            self.config.ssh.rebuild_user,
+                            connection_ip,
+                            self.config.ssh.service_manage_cmd,
+                            service_name
+                        );
+                        
+                        std::process::Command::new("tmux")
+                            .arg("split-window")
+                            .arg("-v")
+                            .arg("-p")
+                            .arg("30")
+                            .arg(&service_stop_command)
+                            .spawn()
+                            .ok(); // Ignore errors, tmux will handle them
+                    }
+                }
+                KeyCode::Char('L') => {
+                    // Show service logs via service-manage script in tmux split window
+                    if let (Some(service_name), Some(hostname)) = (self.get_selected_service(), self.current_host.clone()) {
+                        let connection_ip = self.get_connection_ip(&hostname);
+                        let logs_command = format!(
+                            "ssh -tt {}@{} '{} logs {}'",
+                            self.config.ssh.rebuild_user,
+                            connection_ip,
+                            self.config.ssh.service_manage_cmd,
+                            service_name
+                        );
+                        
+                        std::process::Command::new("tmux")
+                            .arg("split-window")
+                            .arg("-v")
+                            .arg("-p")
+                            .arg("30")
+                            .arg(&logs_command)
+                            .spawn()
+                            .ok(); // Ignore errors, tmux will handle them
+                    }
+                }
+                KeyCode::Char('w') => {
+                    // Wake on LAN for offline hosts
+                    if let Some(hostname) = self.current_host.clone() {
+                        // Check if host has MAC address configured
+                        if let Some(host_details) = self.config.hosts.get(&hostname) {
+                            if let Some(mac_address) = &host_details.mac_address {
+                                // Parse MAC address and send WoL packet
+                                let mac_bytes = Self::parse_mac_address(mac_address);
+                                match mac_bytes {
+                                    Ok(mac) => {
+                                        match MagicPacket::new(&mac).send() {
+                                            Ok(_) => {
+                                                info!("WakeOnLAN packet sent successfully to {} ({})", hostname, mac_address);
+                                            }
+                                            Err(e) => {
+                                                tracing::error!("Failed to send WakeOnLAN packet to {}: {}", hostname, e);
+                                            }
+                                        }
+                                    }
+                                    Err(_) => {
+                                        tracing::error!("Invalid MAC address format for {}: {}", hostname, mac_address);
+                                    }
+                                }
+                            }
                         }
                     }
                 }
-                KeyCode::Char('b') => {
-                    // Trigger backup
+                KeyCode::Char('t') => {
+                    // Open SSH terminal session in tmux window
                     if let Some(hostname) = self.current_host.clone() {
-                        self.start_command(&hostname, CommandType::BackupTrigger, hostname.clone());
-                        return Ok(Some(UiCommand::TriggerBackup { hostname }));
+                        let connection_ip = self.get_connection_ip(&hostname);
+                        let ssh_command = format!(
+                            "echo 'Opening SSH terminal to: {}' && ssh -tt {}@{}",
+                            hostname,
+                            self.config.ssh.rebuild_user,
+                            connection_ip
+                        );
+                        
+                        std::process::Command::new("tmux")
+                            .arg("split-window")
+                            .arg("-v")
+                            .arg("-p")
+                            .arg("30") // Use 30% like other commands
+                            .arg(&ssh_command)
+                            .spawn()
+                            .ok(); // Ignore errors, tmux will handle them
                     }
                 }
                 KeyCode::Tab => {
@@ -313,7 +364,7 @@ ssh -tt {}@{} 'bash -ic {}'",
                 _ => {}
             }
         }
-        Ok(None)
+        Ok(())
     }
 
     /// Navigate between hosts
@@ -336,9 +387,8 @@ ssh -tt {}@{} 'bash -ic {}'",
         self.current_host = Some(self.available_hosts[self.host_index].clone());
         
         // Check if user navigated away from localhost
-        let localhost = gethostname::gethostname().to_string_lossy().to_string();
         if let Some(ref current) = self.current_host {
-            if current != &localhost {
+            if current != &self.localhost {
                 self.user_navigated_away = true;
             } else {
                 self.user_navigated_away = false; // User navigated back to localhost
@@ -368,86 +418,8 @@ ssh -tt {}@{} 'bash -ic {}'",
         self.should_quit
     }
 
-    /// Get current service status for state-aware command validation
-    fn get_current_service_status(&self, hostname: &str, service_name: &str) -> Option<String> {
-        if let Some(host_widgets) = self.host_widgets.get(hostname) {
-            return host_widgets.services_widget.get_service_status(service_name);
-        }
-        None
-    }
 
-    /// Start command execution with immediate visual feedback 
-    pub fn start_command(&mut self, hostname: &str, command_type: CommandType, target: String) -> bool {
-        // Get current service status to validate command
-        let current_status = self.get_current_service_status(hostname, &target);
-        
-        // Validate if command makes sense for current state
-        let should_execute = match (&command_type, current_status.as_deref()) {
-            (CommandType::ServiceStart, Some("inactive") | Some("failed") | Some("dead")) => true,
-            (CommandType::ServiceStop, Some("active")) => true,
-            (CommandType::ServiceStart, Some("active")) => {
-                // Already running - don't execute
-                false
-            },
-            (CommandType::ServiceStop, Some("inactive") | Some("failed") | Some("dead")) => {
-                // Already stopped - don't execute  
-                false
-            },
-            (_, None) => {
-                // Unknown service state - allow command to proceed
-                true
-            },
-            _ => true, // Default: allow other combinations
-        };
-        
-        // ALWAYS store the pending transition for immediate visual feedback, even if we don't execute
-        if let Some(host_widgets) = self.host_widgets.get_mut(hostname) {
-            host_widgets.pending_service_transitions.insert(
-                target.clone(), 
-                (command_type, current_status.unwrap_or_else(|| "unknown".to_string()), Instant::now())
-            );
-        }
-        
-        should_execute
-    }
 
-    /// Clear pending transitions when real status updates arrive or timeout
-    fn clear_completed_transitions(&mut self, hostname: &str, service_metrics: &[&Metric]) {
-        if let Some(host_widgets) = self.host_widgets.get_mut(hostname) {
-            let mut completed_services = Vec::new();
-            
-            // Check each pending transition to see if real status has changed
-            for (service_name, (command_type, original_status, _start_time)) in &host_widgets.pending_service_transitions {
-                
-                // Look for status metric for this service
-                for metric in service_metrics {
-                    if metric.name == format!("service_{}_status", service_name) {
-                        let new_status = metric.value.as_string();
-                        
-                        // Check if status has changed from original (command completed)
-                        if &new_status != original_status {
-                            // Verify it changed in the expected direction
-                            let expected_change = match command_type {
-                                CommandType::ServiceStart => &new_status == "active",
-                                CommandType::ServiceStop => &new_status != "active",
-                                _ => false,
-                            };
-                            
-                            if expected_change {
-                                completed_services.push(service_name.clone());
-                            }
-                        }
-                        break;
-                    }
-                }
-            }
-            
-            // Remove completed transitions
-            for service_name in completed_services {
-                host_widgets.pending_service_transitions.remove(&service_name);
-            }
-        }
-    }
 
 
 
@@ -482,6 +454,21 @@ ssh -tt {}@{} 'bash -ic {}'",
             ])
             .split(main_chunks[1]); // main_chunks[1] is now the content area (between title and statusbar)
 
+        // Check if current host is offline
+        let current_host_offline = if let Some(hostname) = self.current_host.clone() {
+            self.calculate_host_status(&hostname, metric_store) == Status::Offline
+        } else {
+            true // No host selected is considered offline
+        };
+
+        // If host is offline, render wake-up message instead of panels
+        if current_host_offline {
+            self.render_offline_host_message(frame, main_chunks[1]);
+            self.render_btop_title(frame, main_chunks[0], metric_store);
+            self.render_statusbar(frame, main_chunks[2]);
+            return;
+        }
+
         // Check if backup panel should be shown
         let show_backup = if let Some(hostname) = self.current_host.clone() {
             let host_widgets = self.get_or_create_host_widgets(&hostname);
@@ -520,14 +507,10 @@ ssh -tt {}@{} 'bash -ic {}'",
         // Render services widget for current host
         if let Some(hostname) = self.current_host.clone() {
             let is_focused = true; // Always show service selection
-            let (scroll_offset, pending_transitions) = {
-                let host_widgets = self.get_or_create_host_widgets(&hostname);
-                (host_widgets.services_scroll_offset, host_widgets.pending_service_transitions.clone())
-            };
             let host_widgets = self.get_or_create_host_widgets(&hostname);
             host_widgets
                 .services_widget
-                .render_with_transitions(frame, content_chunks[1], is_focused, scroll_offset, &pending_transitions); // Services takes full right side
+                .render(frame, content_chunks[1], is_focused); // Services takes full right side
         }
 
         // Render statusbar at the bottom
@@ -549,11 +532,14 @@ ssh -tt {}@{} 'bash -ic {}'",
             return;
         }
 
-        // Calculate worst-case status across all hosts
+        // Calculate worst-case status across all hosts (excluding offline)
         let mut worst_status = Status::Ok;
         for host in &self.available_hosts {
             let host_status = self.calculate_host_status(host, metric_store);
-            worst_status = Status::aggregate(&[worst_status, host_status]);
+            // Don't include offline hosts in status aggregation
+            if host_status != Status::Offline {
+                worst_status = Status::aggregate(&[worst_status, host_status]);
+            }
         }
 
         // Use the worst status color as background
@@ -562,12 +548,13 @@ ssh -tt {}@{} 'bash -ic {}'",
         // Split the title bar into left and right sections
         let chunks = Layout::default()
             .direction(Direction::Horizontal)
-            .constraints([Constraint::Length(15), Constraint::Min(0)])
+            .constraints([Constraint::Length(22), Constraint::Min(0)])
             .split(area);
 
-        // Left side: "cm-dashboard" text
+        // Left side: "cm-dashboard" text with version
+        let title_text = format!(" cm-dashboard v{}", env!("CARGO_PKG_VERSION"));
         let left_span = Span::styled(
-            " cm-dashboard", 
+            &title_text, 
             Style::default().fg(Theme::background()).bg(background_color).add_modifier(Modifier::BOLD)
         );
         let left_title = Paragraph::new(Line::from(vec![left_span]))
@@ -626,46 +613,14 @@ ssh -tt {}@{} 'bash -ic {}'",
         frame.render_widget(host_title, chunks[1]);
     }
 
-    /// Calculate overall status for a host based on its metrics
+    /// Calculate overall status for a host based on its structured data
     fn calculate_host_status(&self, hostname: &str, metric_store: &MetricStore) -> Status {
-        let metrics = metric_store.get_metrics_for_host(hostname);
-
-        if metrics.is_empty() {
-            return Status::Unknown;
-        }
-
-        // First check if we have the aggregated host status summary from the agent
-        if let Some(host_summary_metric) = metric_store.get_metric(hostname, "host_status_summary") {
-            return host_summary_metric.status;
-        }
-
-        // Fallback to old aggregation logic with proper Pending handling
-        let mut has_critical = false;
-        let mut has_warning = false;
-        let mut has_pending = false;
-        let mut ok_count = 0;
-
-        for metric in &metrics {
-            match metric.status {
-                Status::Critical => has_critical = true,
-                Status::Warning => has_warning = true,
-                Status::Pending => has_pending = true,
-                Status::Ok => ok_count += 1,
-                Status::Unknown => {} // Ignore unknown for aggregation
-            }
-        }
-
-        // Priority order: Critical > Warning > Pending > Ok > Unknown
-        if has_critical {
-            Status::Critical
-        } else if has_warning {
-            Status::Warning
-        } else if has_pending {
-            Status::Pending
-        } else if ok_count > 0 {
+        // Check if we have structured data for this host
+        if let Some(_agent_data) = metric_store.get_agent_data(hostname) {
+            // Return OK since we have data
             Status::Ok
         } else {
-            Status::Unknown
+            Status::Offline
         }
     }
 
@@ -686,10 +641,14 @@ ssh -tt {}@{} 'bash -ic {}'",
         let mut shortcuts = Vec::new();
         
         // Global shortcuts
-        shortcuts.push("Tab: Switch Host".to_string());
-        shortcuts.push("↑↓/jk: Select Service".to_string());
-        shortcuts.push("r: Rebuild Host".to_string());
-        shortcuts.push("s/S: Start/Stop Service".to_string());
+        shortcuts.push("Tab: Host".to_string());
+        shortcuts.push("↑↓/jk: Select".to_string());
+        shortcuts.push("r: Rebuild".to_string());
+        shortcuts.push("B: Backup".to_string());
+        shortcuts.push("s/S: Start/Stop".to_string());
+        shortcuts.push("L: Logs".to_string());
+        shortcuts.push("t: Terminal".to_string());
+        shortcuts.push("w: Wake".to_string());
         
         // Always show quit
         shortcuts.push("q: Quit".to_string());
@@ -703,12 +662,10 @@ ssh -tt {}@{} 'bash -ic {}'",
         frame.render_widget(system_block, area);
         // Get current host widgets, create if none exist
         if let Some(hostname) = self.current_host.clone() {
-            let scroll_offset = {
-                let host_widgets = self.get_or_create_host_widgets(&hostname);
-                host_widgets.system_scroll_offset
-            };
+            // Clone the config to avoid borrowing issues
+            let config = self.config.clone();
             let host_widgets = self.get_or_create_host_widgets(&hostname);
-            host_widgets.system_widget.render_with_scroll(frame, inner_area, scroll_offset, &hostname);
+            host_widgets.system_widget.render(frame, inner_area, &hostname, Some(&config));
         }
     }
 
@@ -719,14 +676,105 @@ ssh -tt {}@{} 'bash -ic {}'",
 
         // Get current host widgets for backup widget
         if let Some(hostname) = self.current_host.clone() {
-            let scroll_offset = {
-                let host_widgets = self.get_or_create_host_widgets(&hostname);
-                host_widgets.backup_scroll_offset
-            };
             let host_widgets = self.get_or_create_host_widgets(&hostname);
-            host_widgets.backup_widget.render_with_scroll(frame, inner_area, scroll_offset);
+            host_widgets.backup_widget.render(frame, inner_area);
         }
     }
 
+    /// Render offline host message with wake-up option
+    fn render_offline_host_message(&self, frame: &mut Frame, area: Rect) {
+        use ratatui::layout::Alignment;
+        use ratatui::style::Modifier;
+        use ratatui::text::{Line, Span};
+        use ratatui::widgets::{Block, Borders, Paragraph};
 
+        // Get hostname for message
+        let hostname = self.current_host.as_ref()
+            .map(|h| h.as_str())
+            .unwrap_or("Unknown");
+
+        // Check if host has MAC address for wake-on-LAN
+        let has_mac = self.current_host.as_ref()
+            .and_then(|hostname| self.config.hosts.get(hostname))
+            .and_then(|details| details.mac_address.as_ref())
+            .is_some();
+
+        // Create message content
+        let mut lines = vec![
+            Line::from(Span::styled(
+                format!("Host '{}' is offline", hostname),
+                Style::default().fg(Theme::muted_text()).add_modifier(Modifier::BOLD),
+            )),
+            Line::from(""),
+        ];
+
+        if has_mac {
+            lines.push(Line::from(Span::styled(
+                "Press 'w' to wake up host",
+                Style::default().fg(Theme::primary_text()).add_modifier(Modifier::BOLD),
+            )));
+        } else {
+            lines.push(Line::from(Span::styled(
+                "No MAC address configured - cannot wake up",
+                Style::default().fg(Theme::muted_text()),
+            )));
+        }
+
+        // Create centered message
+        let message = Paragraph::new(lines)
+            .block(Block::default()
+                .borders(Borders::ALL)
+                .border_style(Style::default().fg(Theme::muted_text()))
+                .title(" Offline Host ")
+                .title_style(Style::default().fg(Theme::muted_text()).add_modifier(Modifier::BOLD)))
+            .style(Style::default().bg(Theme::background()).fg(Theme::primary_text()))
+            .alignment(Alignment::Center);
+
+        // Center the message in the available area
+        let popup_area = ratatui::layout::Layout::default()
+            .direction(Direction::Vertical)
+            .constraints([
+                Constraint::Percentage(40),
+                Constraint::Length(6),
+                Constraint::Percentage(40),
+            ])
+            .split(area)[1];
+
+        let popup_area = ratatui::layout::Layout::default()
+            .direction(Direction::Horizontal)
+            .constraints([
+                Constraint::Percentage(25),
+                Constraint::Percentage(50),
+                Constraint::Percentage(25),
+            ])
+            .split(popup_area)[1];
+
+        frame.render_widget(message, popup_area);
+    }
+
+    /// Parse MAC address string (e.g., "AA:BB:CC:DD:EE:FF") to [u8; 6]
+    /// Get the connection IP for a hostname based on host configuration
+    fn get_connection_ip(&self, hostname: &str) -> String {
+        if let Some(host_details) = self.config.hosts.get(hostname) {
+            host_details.get_connection_ip(hostname)
+        } else {
+            hostname.to_string()
+        }
+    }
+
+    fn parse_mac_address(mac_str: &str) -> Result<[u8; 6], &'static str> {
+        let parts: Vec<&str> = mac_str.split(':').collect();
+        if parts.len() != 6 {
+            return Err("MAC address must have 6 parts separated by colons");
+        }
+
+        let mut mac = [0u8; 6];
+        for (i, part) in parts.iter().enumerate() {
+            match u8::from_str_radix(part, 16) {
+                Ok(byte) => mac[i] = byte,
+                Err(_) => return Err("Invalid hexadecimal byte in MAC address"),
+            }
+        }
+        Ok(mac)
+    }
 }

dashboard/src/ui/theme.rs

@@ -143,10 +143,12 @@ impl Theme {
     pub fn status_color(status: Status) -> Color {
         match status {
             Status::Ok => Self::success(),
+            Status::Inactive => Self::muted_text(), // Gray for inactive services in service list
             Status::Pending => Self::highlight(), // Blue for pending
             Status::Warning => Self::warning(),
             Status::Critical => Self::error(),
             Status::Unknown => Self::muted_text(),
+            Status::Offline => Self::muted_text(), // Dark gray for offline
         }
     }
 
@@ -242,10 +244,12 @@ impl StatusIcons {
     pub fn get_icon(status: Status) -> &'static str {
         match status {
             Status::Ok => "●",
+            Status::Inactive => "○", // Empty circle for inactive services
             Status::Pending => "◉", // Hollow circle for pending
             Status::Warning => "◐",
-            Status::Critical => "◯",
+            Status::Critical => "!",
             Status::Unknown => "?",
+            Status::Offline => "○", // Empty circle for offline
         }
     }
 
@@ -254,10 +258,12 @@ impl StatusIcons {
         let icon = Self::get_icon(status);
         let status_color = match status {
             Status::Ok => Theme::success(),         // Green
+            Status::Inactive => Theme::muted_text(), // Gray for inactive services
             Status::Pending => Theme::highlight(),       // Blue
             Status::Warning => Theme::warning(),    // Yellow
             Status::Critical => Theme::error(),     // Red
             Status::Unknown => Theme::muted_text(), // Gray
+            Status::Offline => Theme::muted_text(), // Dark gray for offline
         };
 
         vec![

dashboard/src/ui/widgets/backup.rs

@@ -1,4 +1,5 @@
 use cm_dashboard_shared::{Metric, Status};
+use super::Widget;
 use ratatui::{
     layout::Rect,
     widgets::Paragraph,
@@ -6,7 +7,6 @@ use ratatui::{
 };
 use tracing::debug;
 
-use super::Widget;
 use crate::ui::theme::{StatusIcons, Typography};
 
 /// Backup widget displaying backup status, services, and repository information
@@ -18,8 +18,6 @@ pub struct BackupWidget {
     duration_seconds: Option<i64>,
     /// Last backup timestamp
     last_run_timestamp: Option<i64>,
-    /// Total number of backup services
-    total_services: Option<i64>,
     /// Total repository size in GB
     total_repo_size_gb: Option<f32>,
     /// Total disk space for backups in GB
@@ -30,14 +28,8 @@ pub struct BackupWidget {
     backup_disk_product_name: Option<String>,
     /// Backup disk serial number from SMART data
     backup_disk_serial_number: Option<String>,
-    /// Backup disk filesystem label
-    backup_disk_filesystem_label: Option<String>,
-    /// Number of completed services
-    services_completed_count: Option<i64>,
-    /// Number of failed services
-    services_failed_count: Option<i64>,
-    /// Number of disabled services
-    services_disabled_count: Option<i64>,
+    /// Backup disk wear percentage from SMART data
+    backup_disk_wear_percent: Option<f32>,
     /// All individual service metrics for detailed display
     service_metrics: Vec<ServiceMetricData>,
     /// Last update indicator
@@ -48,7 +40,6 @@ pub struct BackupWidget {
 struct ServiceMetricData {
     name: String,
     status: Status,
-    exit_code: Option<i64>,
     archive_count: Option<i64>,
     repo_size_gb: Option<f32>,
 }
@@ -59,16 +50,12 @@ impl BackupWidget {
             overall_status: Status::Unknown,
             duration_seconds: None,
             last_run_timestamp: None,
-            total_services: None,
             total_repo_size_gb: None,
             backup_disk_total_gb: None,
             backup_disk_used_gb: None,
             backup_disk_product_name: None,
             backup_disk_serial_number: None,
-            backup_disk_filesystem_label: None,
-            services_completed_count: None,
-            services_failed_count: None,
-            services_disabled_count: None,
+            backup_disk_wear_percent: None,
             service_metrics: Vec::new(),
             has_data: false,
         }
@@ -109,6 +96,7 @@ impl BackupWidget {
 
 
     /// Extract service name from metric name (e.g., "backup_service_gitea_status" -> "gitea")
+    #[allow(dead_code)]
     fn extract_service_name(metric_name: &str) -> Option<String> {
         if metric_name.starts_with("backup_service_") {
             let name_part = &metric_name[15..]; // Remove "backup_service_" prefix
@@ -116,8 +104,6 @@ impl BackupWidget {
             // Try to extract service name by removing known suffixes
             if let Some(service_name) = name_part.strip_suffix("_status") {
                 Some(service_name.to_string())
-            } else if let Some(service_name) = name_part.strip_suffix("_exit_code") {
-                Some(service_name.to_string())
             } else if let Some(service_name) = name_part.strip_suffix("_archive_count") {
                 Some(service_name.to_string())
             } else if let Some(service_name) = name_part.strip_suffix("_repo_size_gb") {
@@ -134,6 +120,24 @@ impl BackupWidget {
 }
 
 impl Widget for BackupWidget {
+    fn update_from_agent_data(&mut self, agent_data: &cm_dashboard_shared::AgentData) {
+        self.has_data = true;
+        
+        let backup = &agent_data.backup;
+        self.overall_status = Status::Ok;
+        
+        if let Some(size) = backup.total_size_gb {
+            self.total_repo_size_gb = Some(size);
+        }
+        
+        if let Some(last_run) = backup.last_run {
+            self.last_run_timestamp = Some(last_run as i64);
+        }
+    }
+}
+
+impl BackupWidget {
+    #[allow(dead_code)]
     fn update_from_metrics(&mut self, metrics: &[&Metric]) {
         debug!("Backup widget updating with {} metrics", metrics.len());
         for metric in metrics {
@@ -179,9 +183,6 @@ impl Widget for BackupWidget {
                 "backup_last_run_timestamp" => {
                     self.last_run_timestamp = metric.value.as_i64();
                 }
-                "backup_total_services" => {
-                    self.total_services = metric.value.as_i64();
-                }
                 "backup_total_repo_size_gb" => {
                     self.total_repo_size_gb = metric.value.as_f32();
                 }
@@ -197,17 +198,8 @@ impl Widget for BackupWidget {
                 "backup_disk_serial_number" => {
                     self.backup_disk_serial_number = Some(metric.value.as_string());
                 }
-                "backup_disk_filesystem_label" => {
-                    self.backup_disk_filesystem_label = Some(metric.value.as_string());
-                }
-                "backup_services_completed_count" => {
-                    self.services_completed_count = metric.value.as_i64();
-                }
-                "backup_services_failed_count" => {
-                    self.services_failed_count = metric.value.as_i64();
-                }
-                "backup_services_disabled_count" => {
-                    self.services_disabled_count = metric.value.as_i64();
+                "backup_disk_wear_percent" => {
+                    self.backup_disk_wear_percent = metric.value.as_f32();
                 }
                 _ => {
                     // Handle individual service metrics
@@ -220,8 +212,7 @@ impl Widget for BackupWidget {
                             ServiceMetricData {
                                 name: service_name,
                                 status: Status::Unknown,
-                                exit_code: None,
-                                archive_count: None,
+                                    archive_count: None,
                                 repo_size_gb: None,
                             }
                         });
@@ -229,8 +220,6 @@ impl Widget for BackupWidget {
                         if metric.name.ends_with("_status") {
                             entry.status = metric.status;
                             debug!("Set status for {}: {:?}", entry.name, entry.status);
-                        } else if metric.name.ends_with("_exit_code") {
-                            entry.exit_code = metric.value.as_i64();
                         } else if metric.name.ends_with("_archive_count") {
                             entry.archive_count = metric.value.as_i64();
                             debug!(
@@ -285,8 +274,8 @@ impl Widget for BackupWidget {
 }
 
 impl BackupWidget {
-    /// Render with scroll offset support
-    pub fn render_with_scroll(&mut self, frame: &mut Frame, area: Rect, scroll_offset: usize) {
+    /// Render backup widget
+    pub fn render(&mut self, frame: &mut Frame, area: Rect) {
         let mut lines = Vec::new();
 
         // Latest backup section
@@ -328,21 +317,31 @@ impl BackupWidget {
             );
             lines.push(ratatui::text::Line::from(disk_spans));
 
-            // Serial number as sub-item
+            // Collect sub-items to determine tree structure
+            let mut sub_items = Vec::new();
+            
             if let Some(serial) = &self.backup_disk_serial_number {
-                lines.push(ratatui::text::Line::from(vec![
-                    ratatui::text::Span::styled("  ├─ ", Typography::tree()),
-                    ratatui::text::Span::styled(format!("S/N: {}", serial), Typography::secondary())
-                ]));
+                sub_items.push(format!("S/N: {}", serial));
             }
-
-            // Usage as sub-item
+            
+            if let Some(wear) = self.backup_disk_wear_percent {
+                sub_items.push(format!("Wear: {:.0}%", wear));
+            }
+            
             if let (Some(used), Some(total)) = (self.backup_disk_used_gb, self.backup_disk_total_gb) {
                 let used_str = Self::format_size_with_proper_units(used);
                 let total_str = Self::format_size_with_proper_units(total);
+                sub_items.push(format!("Usage: {}/{}", used_str, total_str));
+            }
+            
+            // Render sub-items with proper tree structure
+            let num_items = sub_items.len();
+            for (i, item) in sub_items.into_iter().enumerate() {
+                let is_last = i == num_items - 1;
+                let tree_char = if is_last { "  └─ " } else { "  ├─ " };
                 lines.push(ratatui::text::Line::from(vec![
-                    ratatui::text::Span::styled("  └─ ", Typography::tree()),
-                    ratatui::text::Span::styled(format!("Usage: {}/{}", used_str, total_str), Typography::secondary())
+                    ratatui::text::Span::styled(tree_char, Typography::tree()),
+                    ratatui::text::Span::styled(item, Typography::secondary())
                 ]));
             }
         }
@@ -366,42 +365,20 @@ impl BackupWidget {
         let total_lines = lines.len();
         let available_height = area.height as usize;
         
-        // Calculate scroll boundaries
-        let max_scroll = if total_lines > available_height {
-            total_lines - available_height
-        } else {
-            total_lines.saturating_sub(1)
-        };
-        let effective_scroll = scroll_offset.min(max_scroll);
-        
-        // Apply scrolling if needed
-        if scroll_offset > 0 || total_lines > available_height {
+        // Show only what fits, with "X more below" if needed
+        if total_lines > available_height {
+            let lines_for_content = available_height.saturating_sub(1); // Reserve one line for "more below"
             let mut visible_lines: Vec<_> = lines
                 .into_iter()
-                .skip(effective_scroll)
-                .take(available_height)
+                .take(lines_for_content)
                 .collect();
             
-            // Add scroll indicator if there are hidden lines
-            if total_lines > available_height {
-                let hidden_above = effective_scroll;
-                let hidden_below = total_lines.saturating_sub(effective_scroll + available_height);
-                
-                if (hidden_above > 0 || hidden_below > 0) && !visible_lines.is_empty() {
-                    let scroll_text = if hidden_above > 0 && hidden_below > 0 {
-                        format!("... {} above, {} below", hidden_above, hidden_below)
-                    } else if hidden_above > 0 {
-                        format!("... {} more above", hidden_above)
-                    } else {
-                        format!("... {} more below", hidden_below)
-                    };
-                    
-                    // Replace last line with scroll indicator
-                    visible_lines.pop();
-                    visible_lines.push(ratatui::text::Line::from(vec![
-                        ratatui::text::Span::styled(scroll_text, Typography::muted())
-                    ]));
-                }
+            let hidden_below = total_lines.saturating_sub(lines_for_content);
+            if hidden_below > 0 {
+                let more_line = ratatui::text::Line::from(vec![
+                    ratatui::text::Span::styled(format!("... {} more below", hidden_below), Typography::muted())
+                ]);
+                visible_lines.push(more_line);
             }
             
             let paragraph = Paragraph::new(ratatui::text::Text::from(visible_lines));

dashboard/src/ui/widgets/mod.rs

@@ -1,4 +1,4 @@
-use cm_dashboard_shared::Metric;
+use cm_dashboard_shared::AgentData;
 
 pub mod backup;
 pub mod cpu;
@@ -10,9 +10,8 @@ pub use backup::BackupWidget;
 pub use services::ServicesWidget;
 pub use system::SystemWidget;
 
-/// Widget trait for UI components that display metrics
+/// Widget trait for UI components that display structured data
 pub trait Widget {
-    /// Update widget with new metrics data
-    fn update_from_metrics(&mut self, metrics: &[&Metric]);
-
+    /// Update widget with structured agent data
+    fn update_from_agent_data(&mut self, agent_data: &AgentData);
 }

dashboard/src/ui/widgets/services.rs

@@ -1,4 +1,5 @@
 use cm_dashboard_shared::{Metric, Status};
+use super::Widget;
 use ratatui::{
     layout::{Constraint, Direction, Layout, Rect},
     widgets::Paragraph,
@@ -7,9 +8,7 @@ use ratatui::{
 use std::collections::HashMap;
 use tracing::debug;
 
-use super::Widget;
 use crate::ui::theme::{Components, StatusIcons, Theme, Typography};
-use crate::ui::CommandType;
 use ratatui::style::Style;
 
 /// Services widget displaying hierarchical systemd service statuses
@@ -48,6 +47,7 @@ impl ServicesWidget {
     }
 
     /// Extract service name and determine if it's a parent or sub-service
+    #[allow(dead_code)]
     fn extract_service_info(metric_name: &str) -> Option<(String, Option<String>)> {
         if metric_name.starts_with("service_") {
             if let Some(end_pos) = metric_name
@@ -113,13 +113,10 @@ impl ServicesWidget {
             name.to_string()
         };
 
-        // Parent services always show active/inactive status
+        // Parent services always show actual systemctl status
         let status_str = match info.widget_status {
-            Status::Ok => "active".to_string(),
             Status::Pending => "pending".to_string(),
-            Status::Warning => "inactive".to_string(),
-            Status::Critical => "failed".to_string(),
-            Status::Unknown => "unknown".to_string(),
+            _ => info.status.clone(), // Use actual status from agent (active/inactive/failed)
         };
 
         format!(
@@ -128,40 +125,14 @@ impl ServicesWidget {
         )
     }
 
-    /// Get status icon for service, considering pending transitions for visual feedback
-    fn get_service_icon_and_status(&self, service_name: &str, info: &ServiceInfo, pending_transitions: &HashMap<String, (CommandType, String, std::time::Instant)>) -> (String, String, ratatui::prelude::Color) {
-        // Check if this service has a pending transition
-        if let Some((command_type, _original_status, _start_time)) = pending_transitions.get(service_name) {
-            // Show transitional icons for pending commands
-            let (icon, status_text) = match command_type {
-                CommandType::ServiceStart => ("↑", "starting"), 
-                CommandType::ServiceStop => ("↓", "stopping"),
-                _ => return (StatusIcons::get_icon(info.widget_status).to_string(), info.status.clone(), Theme::status_color(info.widget_status)), // Not a service command
-            };
-            return (icon.to_string(), status_text.to_string(), Theme::highlight());
-        }
-        
-        // Normal status display
-        let icon = StatusIcons::get_icon(info.widget_status);
-        let status_color = match info.widget_status {
-            Status::Ok => Theme::success(),
-            Status::Pending => Theme::highlight(),
-            Status::Warning => Theme::warning(),
-            Status::Critical => Theme::error(),
-            Status::Unknown => Theme::muted_text(),
-        };
-        
-        (icon.to_string(), info.status.clone(), status_color)
-    }
 
 
-    /// Create spans for sub-service with icon next to name, considering pending transitions
-    fn create_sub_service_spans_with_transitions(
+    /// Create spans for sub-service with icon next to name
+    fn create_sub_service_spans(
         &self,
         name: &str,
         info: &ServiceInfo,
         is_last: bool,
-        pending_transitions: &HashMap<String, (CommandType, String, std::time::Instant)>,
     ) -> Vec<ratatui::text::Span<'static>> {
         // Truncate long sub-service names to fit layout (accounting for indentation)
         let short_name = if name.len() > 18 {
@@ -170,19 +141,28 @@ impl ServicesWidget {
             name.to_string()
         };
 
-        // Get status icon and text, considering pending transitions
-        let (icon, mut status_str, status_color) = self.get_service_icon_and_status(name, info, pending_transitions);
+        // Get status icon and text
+        let icon = StatusIcons::get_icon(info.widget_status);
+        let status_color = match info.widget_status {
+            Status::Ok => Theme::success(),
+            Status::Inactive => Theme::muted_text(),
+            Status::Pending => Theme::highlight(),
+            Status::Warning => Theme::warning(),
+            Status::Critical => Theme::error(),
+            Status::Unknown => Theme::muted_text(),
+            Status::Offline => Theme::muted_text(),
+        };
 
-        // For sub-services, prefer latency if available (unless transition is pending)
-        if !pending_transitions.contains_key(name) {
-            if let Some(latency) = info.latency_ms {
-                status_str = if latency < 0.0 {
-                    "timeout".to_string()
-                } else {
-                    format!("{:.0}ms", latency)
-                };
+        // For sub-services, prefer latency if available
+        let status_str = if let Some(latency) = info.latency_ms {
+            if latency < 0.0 {
+                "timeout".to_string()
+            } else {
+                format!("{:.0}ms", latency)
             }
-        }
+        } else {
+            info.status.clone()
+        };
         let tree_symbol = if is_last { "└─" } else { "├─" };
 
         vec![
@@ -230,36 +210,13 @@ impl ServicesWidget {
     }
 
     /// Get currently selected service name (for actions)
+    /// Only returns parent service names since only parent services can be selected
     pub fn get_selected_service(&self) -> Option<String> {
-        // Build the same display list to find the selected service
-        let mut display_lines: Vec<(String, Status, bool, Option<(ServiceInfo, bool)>, String)> = Vec::new();
-        
+        // Only parent services can be selected, so just get the parent service at selected_index
         let mut parent_services: Vec<_> = self.parent_services.iter().collect();
         parent_services.sort_by(|(a, _), (b, _)| a.cmp(b));
-
-        for (parent_name, parent_info) in parent_services {
-            let parent_line = self.format_parent_service_line(parent_name, parent_info);
-            display_lines.push((parent_line, parent_info.widget_status, false, None, parent_name.clone()));
-            
-            if let Some(sub_list) = self.sub_services.get(parent_name) {
-                let mut sorted_subs = sub_list.clone();
-                sorted_subs.sort_by(|(a, _), (b, _)| a.cmp(b));
-                
-                for (i, (sub_name, sub_info)) in sorted_subs.iter().enumerate() {
-                    let is_last_sub = i == sorted_subs.len() - 1;
-                    let full_sub_name = format!("{}_{}", parent_name, sub_name);
-                    display_lines.push((
-                        sub_name.clone(),
-                        sub_info.widget_status,
-                        true,
-                        Some((sub_info.clone(), is_last_sub)),
-                        full_sub_name,
-                    ));
-                }
-            }
-        }
         
-        display_lines.get(self.selected_index).map(|(_, _, _, _, raw_name)| raw_name.clone())
+        parent_services.get(self.selected_index).map(|(name, _)| name.to_string())
     }
 
     /// Get total count of selectable services (parent services only, not sub-services)
@@ -268,25 +225,6 @@ impl ServicesWidget {
         self.parent_services.len()
     }
 
-    /// Get current status of a specific service by name
-    pub fn get_service_status(&self, service_name: &str) -> Option<String> {
-        // Check if it's a parent service
-        if let Some(parent_info) = self.parent_services.get(service_name) {
-            return Some(parent_info.status.clone());
-        }
-        
-        // Check sub-services (format: parent_sub)
-        for (parent_name, sub_list) in &self.sub_services {
-            for (sub_name, sub_info) in sub_list {
-                let full_sub_name = format!("{}_{}", parent_name, sub_name);
-                if full_sub_name == service_name {
-                    return Some(sub_info.status.clone());
-                }
-            }
-        }
-        
-        None
-    }
 
     /// Calculate which parent service index corresponds to a display line index
     fn calculate_parent_service_index(&self, display_line_index: &usize) -> usize {
@@ -318,6 +256,29 @@ impl ServicesWidget {
 }
 
 impl Widget for ServicesWidget {
+    fn update_from_agent_data(&mut self, agent_data: &cm_dashboard_shared::AgentData) {
+        self.has_data = true;
+        self.parent_services.clear();
+        self.sub_services.clear();
+        
+        for service in &agent_data.services {
+            let service_info = ServiceInfo {
+                status: service.status.clone(),
+                memory_mb: Some(service.memory_mb),
+                disk_gb: Some(service.disk_gb),
+                latency_ms: None,
+                widget_status: Status::Ok,
+            };
+            
+            self.parent_services.insert(service.name.clone(), service_info);
+        }
+        
+        self.status = Status::Ok;
+    }
+}
+
+impl ServicesWidget {
+    #[allow(dead_code)]
     fn update_from_metrics(&mut self, metrics: &[&Metric]) {
         debug!("Services widget updating with {} metrics", metrics.len());
 
@@ -441,8 +402,8 @@ impl Widget for ServicesWidget {
 
 impl ServicesWidget {
 
-    /// Render with focus, scroll, and pending transitions for visual feedback
-    pub fn render_with_transitions(&mut self, frame: &mut Frame, area: Rect, is_focused: bool, scroll_offset: usize, pending_transitions: &HashMap<String, (CommandType, String, std::time::Instant)>) {
+    /// Render with focus
+    pub fn render(&mut self, frame: &mut Frame, area: Rect, is_focused: bool) {
         let services_block = Components::widget_block("services");
         let inner_area = services_block.inner(area);
         frame.render_widget(services_block, area);
@@ -467,14 +428,14 @@ impl ServicesWidget {
             return;
         }
 
-        // Use the existing render logic but with pending transitions
-        self.render_services_with_transitions(frame, content_chunks[1], is_focused, scroll_offset, pending_transitions);
+        // Render the services list
+        self.render_services(frame, content_chunks[1], is_focused);
     }
 
-    /// Render services list with pending transitions awareness
-    fn render_services_with_transitions(&mut self, frame: &mut Frame, area: Rect, is_focused: bool, scroll_offset: usize, pending_transitions: &HashMap<String, (CommandType, String, std::time::Instant)>) {
-        // Build hierarchical service list for display - include raw service name for pending transition lookups
-        let mut display_lines: Vec<(String, Status, bool, Option<(ServiceInfo, bool)>, String)> = Vec::new(); // Added raw service name
+    /// Render services list
+    fn render_services(&mut self, frame: &mut Frame, area: Rect, is_focused: bool) {
+        // Build hierarchical service list for display
+        let mut display_lines: Vec<(String, Status, bool, Option<(ServiceInfo, bool)>)> = Vec::new();
 
         // Sort parent services alphabetically for consistent order
         let mut parent_services: Vec<_> = self.parent_services.iter().collect();
@@ -483,7 +444,7 @@ impl ServicesWidget {
         for (parent_name, parent_info) in parent_services {
             // Add parent service line
             let parent_line = self.format_parent_service_line(parent_name, parent_info);
-            display_lines.push((parent_line, parent_info.widget_status, false, None, parent_name.clone())); // Include raw name
+            display_lines.push((parent_line, parent_info.widget_status, false, None));
 
             // Add sub-services for this parent (if any)
             if let Some(sub_list) = self.sub_services.get(parent_name) {
@@ -493,49 +454,48 @@ impl ServicesWidget {
 
                 for (i, (sub_name, sub_info)) in sorted_subs.iter().enumerate() {
                     let is_last_sub = i == sorted_subs.len() - 1;
-                    let full_sub_name = format!("{}_{}", parent_name, sub_name);
                     // Store sub-service info for custom span rendering
                     display_lines.push((
                         sub_name.clone(),
                         sub_info.widget_status,
                         true,
                         Some((sub_info.clone(), is_last_sub)),
-                        full_sub_name, // Raw service name for pending transition lookup
                     )); // true = sub-service, with is_last info
                 }
             }
         }
 
-        // Apply scroll offset and render visible lines (same as existing logic)
+        // Show only what fits, with "X more below" if needed
         let available_lines = area.height as usize;
         let total_lines = display_lines.len();
         
-        // Calculate scroll boundaries
-        let max_scroll = if total_lines > available_lines {
-            total_lines - available_lines
+        // Reserve one line for "X more below" if needed
+        let lines_for_content = if total_lines > available_lines {
+            available_lines.saturating_sub(1)
         } else {
-            total_lines.saturating_sub(1)
+            available_lines
         };
-        let effective_scroll = scroll_offset.min(max_scroll);
         
-        // Get visible lines after scrolling
         let visible_lines: Vec<_> = display_lines
             .iter()
-            .skip(effective_scroll)
-            .take(available_lines)
+            .take(lines_for_content)
             .collect();
         
+        let hidden_below = total_lines.saturating_sub(lines_for_content);
+        
         let lines_to_show = visible_lines.len();
 
         if lines_to_show > 0 {
+            // Add space for "X more below" message if needed
+            let total_chunks_needed = if hidden_below > 0 { lines_to_show + 1 } else { lines_to_show };
             let service_chunks = Layout::default()
                 .direction(Direction::Vertical)
-                .constraints(vec![Constraint::Length(1); lines_to_show])
+                .constraints(vec![Constraint::Length(1); total_chunks_needed])
                 .split(area);
 
-            for (i, (line_text, line_status, is_sub, sub_info, raw_service_name)) in visible_lines.iter().enumerate()
+            for (i, (line_text, line_status, is_sub, sub_info)) in visible_lines.iter().enumerate()
             {
-                let actual_index = effective_scroll + i; // Real index in the full list
+                let actual_index = i; // Simple index since we're not scrolling
                 
                 // Only parent services can be selected - calculate parent service index
                 let is_selected = if !*is_sub {
@@ -547,41 +507,16 @@ impl ServicesWidget {
                 };
                 
                 let mut spans = if *is_sub && sub_info.is_some() {
-                    // Use custom sub-service span creation WITH pending transitions
+                    // Use custom sub-service span creation
                     let (service_info, is_last) = sub_info.as_ref().unwrap();
-                    self.create_sub_service_spans_with_transitions(line_text, service_info, *is_last, pending_transitions)
+                    self.create_sub_service_spans(line_text, service_info, *is_last)
                 } else {
-                    // Parent services - check if this parent service has a pending transition using RAW service name
-                    if pending_transitions.contains_key(raw_service_name) {
-                        // Create spans with transitional status
-                        let (icon, status_text, _) = self.get_service_icon_and_status(raw_service_name, &ServiceInfo { 
-                            status: "".to_string(), 
-                            memory_mb: None, 
-                            disk_gb: None, 
-                            latency_ms: None, 
-                            widget_status: *line_status 
-                        }, pending_transitions);
-                        
-                        // Use blue for transitional icons when not selected, background color when selected
-                        let icon_color = if is_selected && !*is_sub && is_focused {
-                            Theme::background() // Dark background color for visibility against blue selection
-                        } else {
-                            Theme::highlight() // Blue for normal case
-                        };
-                        
-                        vec![
-                            ratatui::text::Span::styled(format!("{} ", icon), Style::default().fg(icon_color)),
-                            ratatui::text::Span::styled(line_text.clone(), Style::default().fg(Theme::primary_text())),
-                            ratatui::text::Span::styled(format!(" {}", status_text), Style::default().fg(icon_color)),
-                        ]
-                    } else {
-                        StatusIcons::create_status_spans(*line_status, line_text)
-                    }
+                    // Parent services - use normal status spans
+                    StatusIcons::create_status_spans(*line_status, line_text)
                 };
                 
-                // Apply selection highlighting to parent services only, making icons background color when selected
+                // Apply selection highlighting to parent services only
                 // Only show selection when Services panel is focused
-                // Show selection highlighting even when transitional icons are present
                 if is_selected && !*is_sub && is_focused {
                     for (i, span) in spans.iter_mut().enumerate() {
                         if i == 0 {
@@ -602,33 +537,12 @@ impl ServicesWidget {
                 
                 frame.render_widget(service_para, service_chunks[i]);
             }
-        }
-
-        // Show scroll indicator if there are more services than we can display (same as existing)
-        if total_lines > available_lines {
-            let hidden_above = effective_scroll;
-            let hidden_below = total_lines.saturating_sub(effective_scroll + available_lines);
             
-            if hidden_above > 0 || hidden_below > 0 {
-                let scroll_text = if hidden_above > 0 && hidden_below > 0 {
-                    format!("... {} above, {} below", hidden_above, hidden_below)
-                } else if hidden_above > 0 {
-                    format!("... {} more above", hidden_above)
-                } else {
-                    format!("... {} more below", hidden_below)
-                };
-                
-                if available_lines > 0 && lines_to_show > 0 {
-                    let last_line_area = Rect {
-                        x: area.x,
-                        y: area.y + (lines_to_show - 1) as u16,
-                        width: area.width,
-                        height: 1,
-                    };
-                    
-                    let scroll_para = Paragraph::new(scroll_text).style(Typography::muted());
-                    frame.render_widget(scroll_para, last_line_area);
-                }
+            // Show "X more below" message if content was truncated
+            if hidden_below > 0 {
+                let more_text = format!("... {} more below", hidden_below);
+                let more_para = Paragraph::new(more_text).style(Typography::muted());
+                frame.render_widget(more_para, service_chunks[lines_to_show]);
             }
         }
     }

dashboard/src/ui/widgets/system.rs

@@ -1,4 +1,4 @@
-use cm_dashboard_shared::{Metric, MetricValue, Status};
+use cm_dashboard_shared::Status;
 use ratatui::{
     layout::Rect,
     text::{Line, Span, Text},
@@ -6,7 +6,6 @@ use ratatui::{
     Frame,
 };
 
-use super::Widget;
 use crate::ui::theme::{StatusIcons, Typography};
 
 /// System widget displaying NixOS info, CPU, RAM, and Storage in unified layout
@@ -14,7 +13,6 @@ use crate::ui::theme::{StatusIcons, Typography};
 pub struct SystemWidget {
     // NixOS information
     nixos_build: Option<String>,
-    config_hash: Option<String>,
     agent_hash: Option<String>,
     
     // CPU metrics
@@ -33,6 +31,8 @@ pub struct SystemWidget {
     tmp_total_gb: Option<f32>,
     memory_status: Status,
     tmp_status: Status,
+    /// All tmpfs mounts (for auto-discovery support)
+    tmpfs_mounts: Vec<cm_dashboard_shared::TmpfsData>,
     
     // Storage metrics (collected from disk metrics)
     storage_pools: Vec<StoragePool>,
@@ -45,8 +45,9 @@ pub struct SystemWidget {
 struct StoragePool {
     name: String,
     mount_point: String,
-    pool_type: String, // "Single", "Raid0", etc.
+    pool_type: String, // "single", "mergerfs (2+1)", "RAID5 (3+1)", etc.
     drives: Vec<StorageDrive>,
+    filesystems: Vec<FileSystem>, // For physical drive pools: individual filesystem children
     usage_percent: Option<f32>,
     used_gb: Option<f32>,
     total_gb: Option<f32>,
@@ -61,11 +62,19 @@ struct StorageDrive {
     status: Status,
 }
 
+#[derive(Clone)]
+struct FileSystem {
+    mount_point: String,
+    usage_percent: Option<f32>,
+    used_gb: Option<f32>,
+    total_gb: Option<f32>,
+    status: Status,
+}
+
 impl SystemWidget {
     pub fn new() -> Self {
         Self {
             nixos_build: None,
-            config_hash: None,
             agent_hash: None,
             cpu_load_1min: None,
             cpu_load_5min: None,
@@ -80,6 +89,7 @@ impl SystemWidget {
             tmp_total_gb: None,
             memory_status: Status::Unknown,
             tmp_status: Status::Unknown,
+            tmpfs_mounts: Vec::new(),
             storage_pools: Vec::new(),
             has_data: false,
         }
@@ -113,232 +123,201 @@ impl SystemWidget {
         }
     }
 
-    /// Format /tmp usage
-    fn format_tmp_usage(&self) -> String {
-        match (self.tmp_usage_percent, self.tmp_used_gb, self.tmp_total_gb) {
-            (Some(pct), Some(used), Some(total)) => {
-                let used_str = if used < 0.1 {
-                    format!("{:.0}B", used * 1024.0) // Show as MB if very small
-                } else {
-                    format!("{:.1}GB", used)
-                };
-                format!("{:.0}% {}/{:.1}GB", pct, used_str, total)
-            }
-            _ => "—% —GB/—GB".to_string(),
-        }
-    }
 
     /// Get the current agent hash for rebuild completion detection
     pub fn _get_agent_hash(&self) -> Option<&String> {
         self.agent_hash.as_ref()
     }
+}
 
-    /// Get mount point for a pool name
-    fn get_mount_point_for_pool(&self, pool_name: &str) -> String {
-        match pool_name {
-            "root" => "/".to_string(),
-            "steampool" => "/mnt/steampool".to_string(),
-            "steampool_1" => "/steampool_1".to_string(),
-            "steampool_2" => "/steampool_2".to_string(),
-            _ => format!("/{}", pool_name), // Default fallback
+use super::Widget;
+
+impl Widget for SystemWidget {
+    fn update_from_agent_data(&mut self, agent_data: &cm_dashboard_shared::AgentData) {
+        self.has_data = true;
+
+        // Extract agent version
+        self.agent_hash = Some(agent_data.agent_version.clone());
+        
+        // Extract build version
+        self.nixos_build = agent_data.build_version.clone();
+
+        // Extract CPU data directly
+        let cpu = &agent_data.system.cpu;
+        self.cpu_load_1min = Some(cpu.load_1min);
+        self.cpu_load_5min = Some(cpu.load_5min);
+        self.cpu_load_15min = Some(cpu.load_15min);
+        self.cpu_frequency = Some(cpu.frequency_mhz);
+        self.cpu_status = Status::Ok;
+
+        // Extract memory data directly
+        let memory = &agent_data.system.memory;
+        self.memory_usage_percent = Some(memory.usage_percent);
+        self.memory_used_gb = Some(memory.used_gb);
+        self.memory_total_gb = Some(memory.total_gb);
+        self.memory_status = Status::Ok;
+
+        // Store all tmpfs mounts for display
+        self.tmpfs_mounts = memory.tmpfs.clone();
+        
+        // Extract tmpfs data (maintain backward compatibility for /tmp)
+        if let Some(tmp_data) = memory.tmpfs.iter().find(|t| t.mount == "/tmp") {
+            self.tmp_usage_percent = Some(tmp_data.usage_percent);
+            self.tmp_used_gb = Some(tmp_data.used_gb);
+            self.tmp_total_gb = Some(tmp_data.total_gb);
+            self.tmp_status = Status::Ok;
         }
-    }
 
-    /// Parse storage metrics into pools and drives
-    fn update_storage_from_metrics(&mut self, metrics: &[&Metric]) {
+        // Convert storage data to internal format
+        self.update_storage_from_agent_data(agent_data);
+    }
+}
+
+impl SystemWidget {
+    /// Convert structured storage data to internal format
+    fn update_storage_from_agent_data(&mut self, agent_data: &cm_dashboard_shared::AgentData) {
         let mut pools: std::collections::HashMap<String, StoragePool> = std::collections::HashMap::new();
         
-        for metric in metrics {
-            if metric.name.starts_with("disk_") {
-                if let Some(pool_name) = self.extract_pool_name(&metric.name) {
-                    let mount_point = self.get_mount_point_for_pool(&pool_name);
-                    let pool = pools.entry(pool_name.clone()).or_insert_with(|| StoragePool {
-                        name: pool_name.clone(),
-                        mount_point: mount_point.clone(),
-                        pool_type: "Single".to_string(), // Default, could be enhanced
-                        drives: Vec::new(),
-                        usage_percent: None,
-                        used_gb: None,
-                        total_gb: None,
-                        status: Status::Unknown,
-                    });
+        // Convert drives
+        for drive in &agent_data.system.storage.drives {
+            let mut pool = StoragePool {
+                name: drive.name.clone(),
+                mount_point: drive.name.clone(),
+                pool_type: "drive".to_string(),
+                drives: Vec::new(),
+                filesystems: Vec::new(),
+                usage_percent: None,
+                used_gb: None,
+                total_gb: None,
+                status: Status::Ok,
+            };
 
-                    // Parse different metric types
-                    if metric.name.contains("_usage_percent") {
-                        if let MetricValue::Float(usage) = metric.value {
-                            pool.usage_percent = Some(usage);
-                            pool.status = metric.status.clone();
-                        }
-                    } else if metric.name.contains("_used_gb") {
-                        if let MetricValue::Float(used) = metric.value {
-                            pool.used_gb = Some(used);
-                        }
-                    } else if metric.name.contains("_total_gb") {
-                        if let MetricValue::Float(total) = metric.value {
-                            pool.total_gb = Some(total);
-                        }
-                    } else if metric.name.contains("_temperature") {
-                        if let Some(drive_name) = self.extract_drive_name(&metric.name) {
-                            // Find existing drive or create new one
-                            let drive_exists = pool.drives.iter().any(|d| d.name == drive_name);
-                            if !drive_exists {
-                                pool.drives.push(StorageDrive {
-                                    name: drive_name.clone(),
-                                    temperature: None,
-                                    wear_percent: None,
-                                    status: Status::Unknown,
-                                });
-                            }
-                            
-                            if let Some(drive) = pool.drives.iter_mut().find(|d| d.name == drive_name) {
-                                if let MetricValue::Float(temp) = metric.value {
-                                    drive.temperature = Some(temp);
-                                    drive.status = metric.status.clone();
-                                }
-                            }
-                        }
-                    } else if metric.name.contains("_wear_percent") {
-                        if let Some(drive_name) = self.extract_drive_name(&metric.name) {
-                            // Find existing drive or create new one
-                            let drive_exists = pool.drives.iter().any(|d| d.name == drive_name);
-                            if !drive_exists {
-                                pool.drives.push(StorageDrive {
-                                    name: drive_name.clone(),
-                                    temperature: None,
-                                    wear_percent: None,
-                                    status: Status::Unknown,
-                                });
-                            }
-                            
-                            if let Some(drive) = pool.drives.iter_mut().find(|d| d.name == drive_name) {
-                                if let MetricValue::Float(wear) = metric.value {
-                                    drive.wear_percent = Some(wear);
-                                    drive.status = metric.status.clone();
-                                }
-                            }
-                        }
-                    }
-                }
+            // Add drive info
+            let storage_drive = StorageDrive {
+                name: drive.name.clone(),
+                temperature: drive.temperature_celsius,
+                wear_percent: drive.wear_percent,
+                status: Status::Ok,
+            };
+            pool.drives.push(storage_drive);
+
+            // Calculate totals from filesystems
+            let total_used: f32 = drive.filesystems.iter().map(|fs| fs.used_gb).sum();
+            let total_size: f32 = drive.filesystems.iter().map(|fs| fs.total_gb).sum();
+            let average_usage = if total_size > 0.0 { (total_used / total_size) * 100.0 } else { 0.0 };
+
+            pool.usage_percent = Some(average_usage);
+            pool.used_gb = Some(total_used);
+            pool.total_gb = Some(total_size);
+
+            // Add filesystems
+            for fs in &drive.filesystems {
+                let filesystem = FileSystem {
+                    mount_point: fs.mount.clone(),
+                    usage_percent: Some(fs.usage_percent),
+                    used_gb: Some(fs.used_gb),
+                    total_gb: Some(fs.total_gb),
+                    status: Status::Ok,
+                };
+                pool.filesystems.push(filesystem);
             }
+
+            pools.insert(drive.name.clone(), pool);
         }
 
-        // Convert to sorted vec for consistent ordering
+        // Convert pools
+
+        // Store pools
         let mut pool_list: Vec<StoragePool> = pools.into_values().collect();
-        pool_list.sort_by(|a, b| a.name.cmp(&b.name)); // Sort alphabetically by name
+        pool_list.sort_by(|a, b| a.name.cmp(&b.name));
         self.storage_pools = pool_list;
     }
 
-    /// Extract pool name from disk metric name
-    fn extract_pool_name(&self, metric_name: &str) -> Option<String> {
-        // Pattern: disk_{pool_name}_{drive_name}_{metric_type}
-        // Since pool_name can contain underscores, work backwards from known metric suffixes
-        if metric_name.starts_with("disk_") {
-            // First try drive-specific metrics that have device names
-            if let Some(suffix_pos) = metric_name.rfind("_temperature")
-                .or_else(|| metric_name.rfind("_wear_percent"))
-                .or_else(|| metric_name.rfind("_health")) {
-                // Find the second-to-last underscore to get pool name
-                let before_suffix = &metric_name[..suffix_pos];
-                if let Some(drive_start) = before_suffix.rfind('_') {
-                    return Some(metric_name[5..drive_start].to_string()); // Skip "disk_"
-                }
-            }
-            // For pool-level metrics (usage_percent, used_gb, total_gb), take everything before the metric suffix
-            else if let Some(suffix_pos) = metric_name.rfind("_usage_percent")
-                .or_else(|| metric_name.rfind("_used_gb"))
-                .or_else(|| metric_name.rfind("_total_gb")) {
-                return Some(metric_name[5..suffix_pos].to_string()); // Skip "disk_"
-            }
-            // Fallback to old behavior for unknown patterns
-            else if let Some(captures) = metric_name.strip_prefix("disk_") {
-                if let Some(pos) = captures.find('_') {
-                    return Some(captures[..pos].to_string());
-                }
-            }
-        }
-        None
-    }
-
-    /// Extract drive name from disk metric name  
-    fn extract_drive_name(&self, metric_name: &str) -> Option<String> {
-        // Pattern: disk_{pool_name}_{drive_name}_{metric_type}
-        // Since pool_name can contain underscores, work backwards from known metric suffixes
-        if metric_name.starts_with("disk_") {
-            if let Some(suffix_pos) = metric_name.rfind("_temperature")
-                .or_else(|| metric_name.rfind("_wear_percent"))
-                .or_else(|| metric_name.rfind("_health")) {
-                // Find the second-to-last underscore to get the drive name
-                let before_suffix = &metric_name[..suffix_pos];
-                if let Some(drive_start) = before_suffix.rfind('_') {
-                    return Some(before_suffix[drive_start + 1..].to_string());
-                }
-            }
-        }
-        None
-    }
-
-    /// Render storage section with tree structure
+    /// Render storage section with enhanced tree structure
     fn render_storage(&self) -> Vec<Line<'_>> {
         let mut lines = Vec::new();
 
         for pool in &self.storage_pools {
-            // Pool header line
-            let usage_text = match (pool.usage_percent, pool.used_gb, pool.total_gb) {
-                (Some(pct), Some(used), Some(total)) => {
-                    format!("{:.0}% {:.1}GB/{:.1}GB", pct, used, total)
+            // Pool header line with type and health
+            let pool_label = if pool.pool_type == "drive" {
+                // For physical drives, show the drive name with temperature and wear percentage if available
+                // Look for any drive with temp/wear data (physical drives may have drives named after the pool)
+                let drive_info = pool.drives.iter()
+                    .find(|d| d.name == pool.name)
+                    .or_else(|| pool.drives.first());
+
+                if let Some(drive) = drive_info {
+                    let mut drive_details = Vec::new();
+                    if let Some(temp) = drive.temperature {
+                        drive_details.push(format!("T: {}°C", temp as i32));
+                    }
+                    if let Some(wear) = drive.wear_percent {
+                        drive_details.push(format!("W: {}%", wear as i32));
+                    }
+                    
+                    if !drive_details.is_empty() {
+                        format!("{} {}", pool.name, drive_details.join(" "))
+                    } else {
+                        pool.name.clone()
+                    }
+                } else {
+                    pool.name.clone()
                 }
-                _ => "—% —GB/—GB".to_string(),
-            };
-            
-            let pool_label = if pool.pool_type.to_lowercase() == "single" {
-                format!("{}:", pool.mount_point)
             } else {
-                format!("{} ({}):", pool.mount_point, pool.pool_type)
+                // For mergerfs pools, show pool name with format
+                format!("{} ({})", pool.mount_point, pool.pool_type)
             };
-            let pool_spans = StatusIcons::create_status_spans(
-                pool.status.clone(),
-                &pool_label
-            );
+
+            let pool_spans = StatusIcons::create_status_spans(pool.status.clone(), &pool_label);
             lines.push(Line::from(pool_spans));
 
-            // Drive lines with tree structure
-            let has_usage_line = pool.usage_percent.is_some();
-            for (i, drive) in pool.drives.iter().enumerate() {
-                let is_last_drive = i == pool.drives.len() - 1;
-                let tree_symbol = if is_last_drive && !has_usage_line { "└─" } else { "├─" };
-                
-                let mut drive_info = Vec::new();
-                if let Some(temp) = drive.temperature {
-                    drive_info.push(format!("T: {:.0}C", temp));
+            // Show individual filesystems for physical drives (matching CLAUDE.md format)
+            if pool.pool_type == "drive" {
+                // Show filesystem entries like: ├─ ● /: 55% 250.5GB/456.4GB
+                for (i, filesystem) in pool.filesystems.iter().enumerate() {
+                    let is_last = i == pool.filesystems.len() - 1;
+                    let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
+                    
+                    let fs_text = format!("{}: {:.0}% {:.1}GB/{:.1}GB", 
+                        filesystem.mount_point, 
+                        filesystem.usage_percent.unwrap_or(0.0), 
+                        filesystem.used_gb.unwrap_or(0.0), 
+                        filesystem.total_gb.unwrap_or(0.0));
+                    
+                    let mut fs_spans = vec![
+                        Span::styled(tree_symbol, Typography::tree()),
+                    ];
+                    fs_spans.extend(StatusIcons::create_status_spans(
+                        filesystem.status.clone(), 
+                        &fs_text
+                    ));
+                    lines.push(Line::from(fs_spans));
                 }
-                if let Some(wear) = drive.wear_percent {
-                    drive_info.push(format!("W: {:.0}%", wear));
+            } else {
+                // For mergerfs pools, show data drives and parity drives in tree structure
+                if !pool.drives.is_empty() {
+                    // Group drives by type based on naming conventions or show all as data drives
+                    let (data_drives, parity_drives): (Vec<_>, Vec<_>) = pool.drives.iter()
+                        .partition(|d| !d.name.contains("parity") && !d.name.starts_with("sdc"));
+
+                    if !data_drives.is_empty() {
+                        lines.push(Line::from(vec![
+                            Span::styled("  ├─ Data Disks:", Typography::secondary())
+                        ]));
+                        for (i, drive) in data_drives.iter().enumerate() {
+                            render_pool_drive(drive, i == data_drives.len() - 1 && parity_drives.is_empty(), &mut lines);
+                        }
+                    }
+
+                    if !parity_drives.is_empty() {
+                        lines.push(Line::from(vec![
+                            Span::styled("  └─ Parity:", Typography::secondary())
+                        ]));
+                        for (i, drive) in parity_drives.iter().enumerate() {
+                            render_pool_drive(drive, i == parity_drives.len() - 1, &mut lines);
+                        }
+                    }
                 }
-                let drive_text = if drive_info.is_empty() {
-                    drive.name.clone()
-                } else {
-                    format!("{} {}", drive.name, drive_info.join(" • "))
-                };
-
-                let mut drive_spans = vec![
-                    Span::raw("  "),
-                    Span::styled(tree_symbol, Typography::tree()),
-                    Span::raw(" "),
-                ];
-                drive_spans.extend(StatusIcons::create_status_spans(drive.status.clone(), &drive_text));
-                lines.push(Line::from(drive_spans));
-            }
-
-            // Usage line
-            if pool.usage_percent.is_some() {
-                let tree_symbol = "└─";
-                let mut usage_spans = vec![
-                    Span::raw("  "),
-                    Span::styled(tree_symbol, Typography::tree()),
-                    Span::raw(" "),
-                ];
-                usage_spans.extend(StatusIcons::create_status_spans(pool.status.clone(), &usage_text));
-                lines.push(Line::from(usage_spans));
             }
         }
 
@@ -346,100 +325,35 @@ impl SystemWidget {
     }
 }
 
-impl Widget for SystemWidget {
-    fn update_from_metrics(&mut self, metrics: &[&Metric]) {
-        self.has_data = !metrics.is_empty();
-
-        for metric in metrics {
-            match metric.name.as_str() {
-                // NixOS metrics
-                "system_nixos_build" => {
-                    if let MetricValue::String(build) = &metric.value {
-                        self.nixos_build = Some(build.clone());
-                    }
-                }
-                "system_config_hash" => {
-                    if let MetricValue::String(hash) = &metric.value {
-                        self.config_hash = Some(hash.clone());
-                    }
-                }
-                "agent_version" => {
-                    if let MetricValue::String(version) = &metric.value {
-                        self.agent_hash = Some(version.clone());
-                    }
-                }
-                
-                // CPU metrics
-                "cpu_load_1min" => {
-                    if let MetricValue::Float(load) = metric.value {
-                        self.cpu_load_1min = Some(load);
-                        self.cpu_status = metric.status.clone();
-                    }
-                }
-                "cpu_load_5min" => {
-                    if let MetricValue::Float(load) = metric.value {
-                        self.cpu_load_5min = Some(load);
-                    }
-                }
-                "cpu_load_15min" => {
-                    if let MetricValue::Float(load) = metric.value {
-                        self.cpu_load_15min = Some(load);
-                    }
-                }
-                "cpu_frequency_mhz" => {
-                    if let MetricValue::Float(freq) = metric.value {
-                        self.cpu_frequency = Some(freq);
-                    }
-                }
-                
-                // Memory metrics
-                "memory_usage_percent" => {
-                    if let MetricValue::Float(usage) = metric.value {
-                        self.memory_usage_percent = Some(usage);
-                        self.memory_status = metric.status.clone();
-                    }
-                }
-                "memory_used_gb" => {
-                    if let MetricValue::Float(used) = metric.value {
-                        self.memory_used_gb = Some(used);
-                    }
-                }
-                "memory_total_gb" => {
-                    if let MetricValue::Float(total) = metric.value {
-                        self.memory_total_gb = Some(total);
-                    }
-                }
-                
-                // Tmpfs metrics
-                "memory_tmp_usage_percent" => {
-                    if let MetricValue::Float(usage) = metric.value {
-                        self.tmp_usage_percent = Some(usage);
-                        self.tmp_status = metric.status.clone();
-                    }
-                }
-                "memory_tmp_used_gb" => {
-                    if let MetricValue::Float(used) = metric.value {
-                        self.tmp_used_gb = Some(used);
-                    }
-                }
-                "memory_tmp_total_gb" => {
-                    if let MetricValue::Float(total) = metric.value {
-                        self.tmp_total_gb = Some(total);
-                    }
-                }
-                _ => {}
-            }
-        }
-
-        // Update storage from all disk metrics
-        self.update_storage_from_metrics(metrics);
+/// Helper function to render a drive in a storage pool
+fn render_pool_drive(drive: &StorageDrive, is_last: bool, lines: &mut Vec<Line<'_>>) {
+    let tree_symbol = if is_last { "    └─" } else { "    ├─" };
+    
+    let mut drive_details = Vec::new();
+    if let Some(temp) = drive.temperature {
+        drive_details.push(format!("T: {}°C", temp as i32));
     }
-
+    if let Some(wear) = drive.wear_percent {
+        drive_details.push(format!("W: {}%", wear as i32));
+    }
+    
+    let drive_text = if !drive_details.is_empty() {
+        format!("● {} {}", drive.name, drive_details.join(" "))
+    } else {
+        format!("● {}", drive.name)
+    };
+    
+    let mut drive_spans = vec![
+        Span::styled(tree_symbol, Typography::tree()),
+        Span::raw(" "),
+    ];
+    drive_spans.extend(StatusIcons::create_status_spans(drive.status.clone(), &drive_text));
+    lines.push(Line::from(drive_spans));
 }
 
 impl SystemWidget {
-    /// Render with scroll offset support
-    pub fn render_with_scroll(&mut self, frame: &mut Frame, area: Rect, scroll_offset: usize, hostname: &str) {
+    /// Render system widget  
+    pub fn render(&mut self, frame: &mut Frame, area: Rect, hostname: &str, config: Option<&crate::config::DashboardConfig>) {
         let mut lines = Vec::new();
 
         // NixOS section
@@ -457,6 +371,16 @@ impl SystemWidget {
             Span::styled(format!("Agent: {}", agent_version_text), Typography::secondary())
         ]));
         
+        // Display detected connection IP
+        if let Some(config) = config {
+            if let Some(host_details) = config.hosts.get(hostname) {
+                let detected_ip = host_details.get_connection_ip(hostname);
+                lines.push(Line::from(vec![
+                    Span::styled(format!("IP: {}", detected_ip), Typography::secondary())
+                ]));
+            }
+        }
+        
 
         // CPU section
         lines.push(Line::from(vec![
@@ -488,84 +412,59 @@ impl SystemWidget {
         );
         lines.push(Line::from(memory_spans));
 
-        let tmp_text = self.format_tmp_usage();
-        let mut tmp_spans = vec![
-            Span::styled("  └─ ", Typography::tree()),
-        ];
-        tmp_spans.extend(StatusIcons::create_status_spans(
-            self.tmp_status.clone(),
-            &format!("/tmp: {}", tmp_text)
-        ));
-        lines.push(Line::from(tmp_spans));
+        // Display all tmpfs mounts
+        for (i, tmpfs) in self.tmpfs_mounts.iter().enumerate() {
+            let is_last = i == self.tmpfs_mounts.len() - 1;
+            let tree_symbol = if is_last { "  └─ " } else { "  ├─ " };
+            
+            let usage_text = if tmpfs.total_gb > 0.0 {
+                format!("{:.0}% {:.1}GB/{:.1}GB", 
+                    tmpfs.usage_percent, 
+                    tmpfs.used_gb, 
+                    tmpfs.total_gb)
+            } else {
+                "— —/—".to_string()
+            };
+            
+            let mut tmpfs_spans = vec![
+                Span::styled(tree_symbol, Typography::tree()),
+            ];
+            tmpfs_spans.extend(StatusIcons::create_status_spans(
+                Status::Ok, // TODO: Calculate status based on usage_percent
+                &format!("{}: {}", tmpfs.mount, usage_text)
+            ));
+            lines.push(Line::from(tmpfs_spans));
+        }
 
         // Storage section
         lines.push(Line::from(vec![
             Span::styled("Storage:", Typography::widget_title())
         ]));
         
-        // Storage items with overflow handling
+        // Storage items - let main overflow logic handle truncation
         let storage_lines = self.render_storage();
-        let remaining_space = area.height.saturating_sub(lines.len() as u16);
-        
-        if storage_lines.len() <= remaining_space as usize {
-            // All storage lines fit
-            lines.extend(storage_lines);
-        } else if remaining_space >= 2 {
-            // Show what we can and add overflow indicator
-            let lines_to_show = (remaining_space - 1) as usize; // Reserve 1 line for overflow
-            lines.extend(storage_lines.iter().take(lines_to_show).cloned());
-            
-            // Count hidden pools
-            let mut hidden_pools = 0;
-            let mut current_pool = String::new();
-            for (i, line) in storage_lines.iter().enumerate() {
-                if i >= lines_to_show {
-                    // Check if this line represents a new pool (no indentation)
-                    if let Some(first_span) = line.spans.first() {
-                        let text = first_span.content.as_ref();
-                        if !text.starts_with("  ") && text.contains(':') {
-                            let pool_name = text.split(':').next().unwrap_or("").trim();
-                            if pool_name != current_pool {
-                                hidden_pools += 1;
-                                current_pool = pool_name.to_string();
-                            }
-                        }
-                    }
-                }
-            }
-            
-            if hidden_pools > 0 {
-                let overflow_text = format!(
-                    "... and {} more pool{}",
-                    hidden_pools,
-                    if hidden_pools == 1 { "" } else { "s" }
-                );
-                lines.push(Line::from(vec![
-                    Span::styled(overflow_text, Typography::muted())
-                ]));
-            }
-        }
+        lines.extend(storage_lines);
 
         // Apply scroll offset
         let total_lines = lines.len();
         let available_height = area.height as usize;
         
-        // Always apply scrolling if scroll_offset > 0, even if content fits
-        if scroll_offset > 0 || total_lines > available_height {
-            let max_scroll = if total_lines > available_height {
-                total_lines - available_height
-            } else {
-                total_lines.saturating_sub(1)
-            };
-            let effective_scroll = scroll_offset.min(max_scroll);
-            
-            // Take only the visible portion after scrolling
-            let visible_lines: Vec<Line> = lines
+        // Show only what fits, with "X more below" if needed
+        if total_lines > available_height {
+            let lines_for_content = available_height.saturating_sub(1); // Reserve one line for "more below"
+            let mut visible_lines: Vec<Line> = lines
                 .into_iter()
-                .skip(effective_scroll)
-                .take(available_height)
+                .take(lines_for_content)
                 .collect();
-                
+            
+            let hidden_below = total_lines.saturating_sub(lines_for_content);
+            if hidden_below > 0 {
+                let more_line = Line::from(vec![
+                    Span::styled(format!("... {} more below", hidden_below), Typography::muted())
+                ]);
+                visible_lines.push(more_line);
+            }
+            
             let paragraph = Paragraph::new(Text::from(visible_lines));
             frame.render_widget(paragraph, area);
         } else {

hardcoded_values_removed.md

@@ -1,88 +0,0 @@
-# Hardcoded Values Removed - Configuration Summary
-
-## ✅ All Hardcoded Values Converted to Configuration
-
-### **1. SystemD Nginx Check Interval**
-- **Before**: `nginx_check_interval_seconds: 30` (hardcoded)
-- **After**: `nginx_check_interval_seconds: config.nginx_check_interval_seconds`
-- **NixOS Config**: `nginx_check_interval_seconds = 30;`
-
-### **2. ZMQ Transmission Interval**  
-- **Before**: `Duration::from_secs(1)` (hardcoded)
-- **After**: `Duration::from_secs(self.config.zmq.transmission_interval_seconds)`
-- **NixOS Config**: `transmission_interval_seconds = 1;`
-
-### **3. HTTP Timeouts in SystemD Collector**
-- **Before**: 
-  ```rust
-  .timeout(Duration::from_secs(10))
-  .connect_timeout(Duration::from_secs(10))
-  ```
-- **After**:
-  ```rust
-  .timeout(Duration::from_secs(self.config.http_timeout_seconds))
-  .connect_timeout(Duration::from_secs(self.config.http_connect_timeout_seconds))
-  ```
-- **NixOS Config**: 
-  ```nix
-  http_timeout_seconds = 10;
-  http_connect_timeout_seconds = 10;
-  ```
-
-## **Configuration Structure Changes**
-
-### **SystemdConfig** (agent/src/config/mod.rs)
-```rust
-pub struct SystemdConfig {
-    // ... existing fields ...
-    pub nginx_check_interval_seconds: u64,      // NEW
-    pub http_timeout_seconds: u64,              // NEW
-    pub http_connect_timeout_seconds: u64,      // NEW
-}
-```
-
-### **ZmqConfig** (agent/src/config/mod.rs)
-```rust
-pub struct ZmqConfig {
-    // ... existing fields ...
-    pub transmission_interval_seconds: u64,     // NEW
-}
-```
-
-## **NixOS Configuration Updates**
-
-### **ZMQ Section** (hosts/common/cm-dashboard.nix)
-```nix
-zmq = {
-  # ... existing fields ...
-  transmission_interval_seconds = 1;           # NEW
-};
-```
-
-### **SystemD Section** (hosts/common/cm-dashboard.nix)
-```nix
-systemd = {
-  # ... existing fields ...
-  nginx_check_interval_seconds = 30;           # NEW  
-  http_timeout_seconds = 10;                   # NEW
-  http_connect_timeout_seconds = 10;           # NEW
-};
-```
-
-## **Benefits**
-
-✅ **No hardcoded values** - All timing/timeout values configurable  
-✅ **Consistent configuration** - Everything follows NixOS config pattern  
-✅ **Environment-specific tuning** - Can adjust timeouts per deployment  
-✅ **Maintainability** - No magic numbers scattered in code  
-✅ **Testing flexibility** - Can configure different values for testing  
-
-## **Runtime Behavior**
-
-All previously hardcoded values now respect configuration:
-- **Nginx latency checks**: Every 30s (configurable)
-- **ZMQ transmission**: Every 1s (configurable)  
-- **HTTP requests**: 10s timeout (configurable)
-- **HTTP connections**: 10s timeout (configurable)
-
-The codebase is now **100% configuration-driven** with no hardcoded timing values.

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.42"
+version = "0.1.142"
 edition = "2021"
 
 [dependencies]

shared/src/agent_data.rs

@@ -0,0 +1,174 @@
+use serde::{Deserialize, Serialize};
+use crate::Status;
+
+/// Complete structured data from an agent
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct AgentData {
+    pub hostname: String,
+    pub agent_version: String,
+    pub build_version: Option<String>,
+    pub timestamp: u64,
+    pub system: SystemData,
+    pub services: Vec<ServiceData>,
+    pub backup: BackupData,
+}
+
+/// System-level monitoring data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct SystemData {
+    pub cpu: CpuData,
+    pub memory: MemoryData,
+    pub storage: StorageData,
+}
+
+/// CPU monitoring data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct CpuData {
+    pub load_1min: f32,
+    pub load_5min: f32,
+    pub load_15min: f32,
+    pub frequency_mhz: f32,
+    pub temperature_celsius: Option<f32>,
+    pub load_status: Status,
+    pub temperature_status: Status,
+}
+
+/// Memory monitoring data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct MemoryData {
+    pub usage_percent: f32,
+    pub total_gb: f32,
+    pub used_gb: f32,
+    pub available_gb: f32,
+    pub swap_total_gb: f32,
+    pub swap_used_gb: f32,
+    pub tmpfs: Vec<TmpfsData>,
+    pub usage_status: Status,
+}
+
+/// Tmpfs filesystem data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TmpfsData {
+    pub mount: String,
+    pub usage_percent: f32,
+    pub used_gb: f32,
+    pub total_gb: f32,
+}
+
+/// Storage monitoring data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct StorageData {
+    pub drives: Vec<DriveData>,
+    pub pools: Vec<PoolData>,
+}
+
+/// Individual drive data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DriveData {
+    pub name: String,
+    pub health: String,
+    pub temperature_celsius: Option<f32>,
+    pub wear_percent: Option<f32>,
+    pub filesystems: Vec<FilesystemData>,
+    pub temperature_status: Status,
+    pub health_status: Status,
+}
+
+/// Filesystem on a drive
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct FilesystemData {
+    pub mount: String,
+    pub usage_percent: f32,
+    pub used_gb: f32,
+    pub total_gb: f32,
+    pub usage_status: Status,
+}
+
+/// Storage pool (MergerFS, RAID, etc.)
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PoolData {
+    pub name: String,
+    pub mount: String,
+    pub pool_type: String, // "mergerfs", "raid", etc.
+    pub health: String,
+    pub usage_percent: f32,
+    pub used_gb: f32,
+    pub total_gb: f32,
+    pub data_drives: Vec<PoolDriveData>,
+    pub parity_drives: Vec<PoolDriveData>,
+}
+
+/// Drive in a storage pool
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PoolDriveData {
+    pub name: String,
+    pub temperature_celsius: Option<f32>,
+    pub wear_percent: Option<f32>,
+    pub health: String,
+}
+
+/// Service monitoring data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ServiceData {
+    pub name: String,
+    pub status: String, // "active", "inactive", "failed"
+    pub memory_mb: f32,
+    pub disk_gb: f32,
+    pub user_stopped: bool,
+    pub service_status: Status,
+}
+
+/// Backup system data
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct BackupData {
+    pub status: String,
+    pub last_run: Option<u64>,
+    pub next_scheduled: Option<u64>,
+    pub total_size_gb: Option<f32>,
+    pub repository_health: Option<String>,
+}
+
+impl AgentData {
+    /// Create new agent data with current timestamp
+    pub fn new(hostname: String, agent_version: String) -> Self {
+        Self {
+            hostname,
+            agent_version,
+            build_version: None,
+            timestamp: chrono::Utc::now().timestamp() as u64,
+            system: SystemData {
+                cpu: CpuData {
+                    load_1min: 0.0,
+                    load_5min: 0.0,
+                    load_15min: 0.0,
+                    frequency_mhz: 0.0,
+                    temperature_celsius: None,
+                    load_status: Status::Unknown,
+                    temperature_status: Status::Unknown,
+                },
+                memory: MemoryData {
+                    usage_percent: 0.0,
+                    total_gb: 0.0,
+                    used_gb: 0.0,
+                    available_gb: 0.0,
+                    swap_total_gb: 0.0,
+                    swap_used_gb: 0.0,
+                    tmpfs: Vec::new(),
+                    usage_status: Status::Unknown,
+                },
+                storage: StorageData {
+                    drives: Vec::new(),
+                    pools: Vec::new(),
+                },
+            },
+            services: Vec::new(),
+            backup: BackupData {
+                status: "unknown".to_string(),
+                last_run: None,
+                next_scheduled: None,
+                total_size_gb: None,
+                repository_health: None,
+            },
+        }
+    }
+}

shared/src/lib.rs

@@ -1,8 +1,10 @@
+pub mod agent_data;
 pub mod cache;
 pub mod error;
 pub mod metrics;
 pub mod protocol;
 
+pub use agent_data::*;
 pub use cache::*;
 pub use error::*;
 pub use metrics::*;

shared/src/metrics.rs

@@ -82,11 +82,13 @@ impl MetricValue {
 /// Health status for metrics
 #[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub enum Status {
-    Ok,
-    Pending,
-    Warning,
-    Critical,
-    Unknown,
+    Inactive, // Lowest priority
+    Unknown,  // 
+    Offline,  // 
+    Pending,  // 
+    Ok,       // 5th place - good status has higher priority than unknown states
+    Warning,  // 
+    Critical, // Highest priority
 }
 
 impl Status {
@@ -129,6 +131,17 @@ impl HysteresisThresholds {
         }
     }
 
+    /// Evaluate value against thresholds to determine status
+    pub fn evaluate(&self, value: f32) -> Status {
+        if value >= self.critical_high {
+            Status::Critical
+        } else if value >= self.warning_high {
+            Status::Warning
+        } else {
+            Status::Ok
+        }
+    }
+
     pub fn with_custom_gaps(warning_high: f32, warning_gap: f32, critical_high: f32, critical_gap: f32) -> Self {
         Self {
             warning_high,
@@ -180,6 +193,16 @@ impl HysteresisThresholds {
                     Status::Ok
                 }
             }
+            Status::Inactive => {
+                // Inactive services use normal thresholds like first measurement
+                if value >= self.critical_high {
+                    Status::Critical
+                } else if value >= self.warning_high {
+                    Status::Warning
+                } else {
+                    Status::Ok
+                }
+            }
             Status::Pending => {
                 // Service transitioning, use normal thresholds like first measurement
                 if value >= self.critical_high {
@@ -190,6 +213,16 @@ impl HysteresisThresholds {
                     Status::Ok
                 }
             }
+            Status::Offline => {
+                // Host coming back online, use normal thresholds like first measurement
+                if value >= self.critical_high {
+                    Status::Critical
+                } else if value >= self.warning_high {
+                    Status::Warning
+                } else {
+                    Status::Ok
+                }
+            }
         }
     }
 }

shared/src/protocol.rs

@@ -1,13 +1,9 @@
-use crate::metrics::Metric;
+use crate::agent_data::AgentData;
 use serde::{Deserialize, Serialize};
 
-/// Message sent from agent to dashboard via ZMQ
-#[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct MetricMessage {
-    pub hostname: String,
-    pub timestamp: u64,
-    pub metrics: Vec<Metric>,
-}
+/// Message sent from agent to dashboard via ZMQ  
+/// Always structured data - no legacy metrics support
+pub type AgentMessage = AgentData;
 
 /// Command output streaming message
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -20,15 +16,6 @@ pub struct CommandOutputMessage {
     pub timestamp: u64,
 }
 
-impl MetricMessage {
-    pub fn new(hostname: String, metrics: Vec<Metric>) -> Self {
-        Self {
-            hostname,
-            timestamp: chrono::Utc::now().timestamp() as u64,
-            metrics,
-        }
-    }
-}
 
 impl CommandOutputMessage {
     pub fn new(hostname: String, command_id: String, command_type: String, output_line: String, is_complete: bool) -> Self {
@@ -59,8 +46,8 @@ pub enum Command {
 pub enum CommandResponse {
     /// Acknowledgment of command
     Ack,
-    /// Metrics response
-    Metrics(Vec<Metric>),
+    /// Agent data response
+    AgentData(AgentData),
     /// Pong response to ping
     Pong,
     /// Error response
@@ -76,7 +63,7 @@ pub struct MessageEnvelope {
 
 #[derive(Debug, Serialize, Deserialize)]
 pub enum MessageType {
-    Metrics,
+    AgentData,
     Command,
     CommandResponse,
     CommandOutput,
@@ -84,10 +71,10 @@ pub enum MessageType {
 }
 
 impl MessageEnvelope {
-    pub fn metrics(message: MetricMessage) -> Result<Self, crate::SharedError> {
+    pub fn agent_data(data: AgentData) -> Result<Self, crate::SharedError> {
         Ok(Self {
-            message_type: MessageType::Metrics,
-            payload: serde_json::to_vec(&message)?,
+            message_type: MessageType::AgentData,
+            payload: serde_json::to_vec(&data)?,
         })
     }
 
@@ -119,11 +106,11 @@ impl MessageEnvelope {
         })
     }
 
-    pub fn decode_metrics(&self) -> Result<MetricMessage, crate::SharedError> {
+    pub fn decode_agent_data(&self) -> Result<AgentData, crate::SharedError> {
         match self.message_type {
-            MessageType::Metrics => Ok(serde_json::from_slice(&self.payload)?),
+            MessageType::AgentData => Ok(serde_json::from_slice(&self.payload)?),
             _ => Err(crate::SharedError::Protocol {
-                message: "Expected metrics message".to_string(),
+                message: "Expected agent data message".to_string(),
             }),
         }
     }

test_intervals.sh

@@ -1,42 +0,0 @@
-#!/bin/bash
-
-# Test script to verify collector intervals are working correctly
-# Expected behavior:
-# - CPU/Memory: Every 2 seconds
-# - Systemd/Network: Every 10 seconds  
-# - Backup/NixOS: Every 60 seconds
-# - Disk: Every 300 seconds (5 minutes)
-
-echo "=== Testing Collector Interval Implementation ==="
-echo "Expected intervals from NixOS config:"
-echo "  CPU: 2s, Memory: 2s"
-echo "  Systemd: 10s, Network: 10s" 
-echo "  Backup: 60s, NixOS: 60s"
-echo "  Disk: 300s (5m)"
-echo ""
-
-# Note: Cannot run actual agent without proper config, but we can verify the code logic
-echo "✅ Code Implementation Status:"
-echo "  - TimedCollector struct with interval tracking: IMPLEMENTED"
-echo "  - Individual collector intervals from config: IMPLEMENTED"  
-echo "  - collect_metrics_timed() respects intervals: IMPLEMENTED"
-echo "  - Debug logging shows interval compliance: IMPLEMENTED"
-echo ""
-
-echo "🔍 Key Implementation Details:"
-echo "  - MetricCollectionManager now tracks last_collection time per collector"
-echo "  - Each collector gets Duration::from_secs(config.{collector}.interval_seconds)"
-echo "  - Only collectors with elapsed >= interval are called"
-echo "  - Debug logs show actual collection with interval info"
-echo ""
-
-echo "📊 Expected Runtime Behavior:"
-echo "  At 0s:  All collectors run (startup)"
-echo "  At 2s:  CPU, Memory run"
-echo "  At 4s:  CPU, Memory run"  
-echo "  At 10s: CPU, Memory, Systemd, Network run"
-echo "  At 60s: CPU, Memory, Systemd, Network, Backup, NixOS run"
-echo "  At 300s: All collectors run including Disk"
-echo ""
-
-echo "✅ CONCLUSION: Codebase now follows NixOS configuration intervals correctly!"

test_tmux_check.rs

@@ -1,32 +0,0 @@
-#!/usr/bin/env rust-script
-
-use std::process;
-
-/// Check if running inside tmux session
-fn check_tmux_session() {
-    // Check for TMUX environment variable which is set when inside a tmux session
-    if std::env::var("TMUX").is_err() {
-        eprintln!("╭─────────────────────────────────────────────────────────────╮");
-        eprintln!("│                        ⚠️  TMUX REQUIRED                      │");
-        eprintln!("├─────────────────────────────────────────────────────────────┤");
-        eprintln!("│  CM Dashboard must be run inside a tmux session for proper   │");
-        eprintln!("│  terminal handling and remote operation functionality.       │");
-        eprintln!("│                                                             │");
-        eprintln!("│  Please start a tmux session first:                        │");
-        eprintln!("│    tmux new-session -d -s dashboard cm-dashboard           │");
-        eprintln!("│    tmux attach-session -t dashboard                        │");
-        eprintln!("│                                                             │");
-        eprintln!("│  Or simply:                                                 │");
-        eprintln!("│    tmux                                                     │");
-        eprintln!("│    cm-dashboard                                             │");
-        eprintln!("╰─────────────────────────────────────────────────────────────╯");
-        process::exit(1);
-    } else {
-        println!("✅ Running inside tmux session - OK");
-    }
-}
-
-fn main() {
-    println!("Testing tmux check function...");
-    check_tmux_session();
-}

test_tmux_simulation.sh

@@ -1,53 +0,0 @@
-#!/bin/bash
-
-echo "=== TMUX Check Implementation Test ==="
-echo ""
-
-echo "📋 Testing tmux check logic:"
-echo ""
-
-echo "1. Current environment:"
-if [ -n "$TMUX" ]; then
-    echo "   ✅ Running inside tmux session"
-    echo "   TMUX variable: $TMUX"
-else
-    echo "   ❌ NOT running inside tmux session"
-    echo "   TMUX variable: (not set)"
-fi
-echo ""
-
-echo "2. Simulating dashboard tmux check logic:"
-echo ""
-
-# Simulate the Rust check logic
-if [ -z "$TMUX" ]; then
-    echo "   Dashboard would show:"
-    echo "   ╭─────────────────────────────────────────────────────────────╮"
-    echo "   │                        ⚠️  TMUX REQUIRED                      │"
-    echo "   ├─────────────────────────────────────────────────────────────┤"
-    echo "   │  CM Dashboard must be run inside a tmux session for proper   │"
-    echo "   │  terminal handling and remote operation functionality.       │"
-    echo "   │                                                             │"
-    echo "   │  Please start a tmux session first:                        │"
-    echo "   │    tmux new-session -d -s dashboard cm-dashboard           │"
-    echo "   │    tmux attach-session -t dashboard                        │"
-    echo "   │                                                             │"
-    echo "   │  Or simply:                                                 │"
-    echo "   │    tmux                                                     │"
-    echo "   │    cm-dashboard                                             │"
-    echo "   ╰─────────────────────────────────────────────────────────────╯"
-    echo "   Then exit with code 1"
-else
-    echo "   ✅ Dashboard tmux check would PASS - continuing normally"
-fi
-echo ""
-
-echo "3. Implementation status:"
-echo "   ✅ check_tmux_session() function added to dashboard/src/main.rs"
-echo "   ✅ Called early in main() but only for TUI mode (not headless)"
-echo "   ✅ Uses std::env::var(\"TMUX\") to detect tmux session"
-echo "   ✅ Shows helpful error message with usage instructions"
-echo "   ✅ Exits with code 1 if not in tmux"
-echo ""
-
-echo "✅ TMUX check implementation complete!"