Scrutiny

Web UI for SMART monitoring of hard drives

8.1k stars 296 forks last commit first released MIT

Actively maintained

Last commit 20 Aug 2026.

Scrutiny is a self-hosted web application for monitoring disk health by collecting SMART data from smartd and correlating it with real-world failure rates. It auto-detects connected drives, tracks SMART metrics over time, and provides a focused dashboard with configurable alerts.

Key Features

  • Web UI dashboard focused on critical SMART metrics
  • Integration with smartd for data collection (no re-invention of SMART parsing)
  • Auto-detection of all connected drives
  • Historical SMART metric tracking and trend visualization
  • Thresholds informed by real-world drive failure data
  • Temperature monitoring
  • Docker-based deployment with an omnibus image (web + collector) and options for manual install
  • Configurable alerting/notifications via Webhooks and other channels
  • Hub/Spoke deployment support (separate web, collector, and storage components)

Use Cases

  • Centralized monitoring of multiple disks in servers, NAS, or data centers
  • Proactive maintenance through alerts when SMART attributes change
  • Long-term health trend analysis to inform replacement cycles or capacity planning

Limitations and Considerations

  • Scrutiny is a work-in-progress and may have rough edges or incomplete features
  • Requires privileged access to host devices to query SMART data (e.g., capability flags for containers)
  • Some RAID controllers or USB-docked drives may require manual configuration to expose SMART data

Conclusion

Scrutiny provides a focused, self-contained solution for monitoring disk health via SMART data, with flexible deployment options and alerting to help mitigate data-loss risk.

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