README

scrutiny







WebUI for smartd S.M.A.R.T monitoring

 [!NOTE]
 Scrutiny is a Work-in-Progress and still has some rough edges.



 Introduction

If you run a server with more than a couple of hard drives, you're probably already familiar with S.M.A.R.T and the smartd daemon. If not, it's an incredible open source project described as the following:

 smartd is a daemon that monitors the Self-Monitoring, Analysis and Reporting Technology (SMART) system built into many ATA, IDE and SCSI-3 hard drives. The purpose of SMART is to monitor the reliability of the hard drive and predict drive failures, and to carry out different types of drive self-tests.

These S.M.A.R.T hard drive self-tests can help you detect and replace failing hard drives before they cause permanent data loss. However, there's a couple issues with smartd:

- There are more than a hundred S.M.A.R.T attributes, however smartd does not differentiate between critical and informational metrics
- smartd does not record S.M.A.R.T attribute history, so it can be hard to determine if an attribute is degrading slowly over time.
- S.M.A.R.T attribute thresholds are set by the manufacturer. In some cases these thresholds are unset, or are so high that they can only be used to confirm a failed drive, rather than detecting a drive about to fail.
- smartd is a command line only tool. For head-less servers a web UI would be more valuable.

Scrutiny is a Hard Drive Health Dashboard & Monitoring solution, merging manufacturer provided S.M.A.R.T metrics with real-world failure rates.

 Features

Scrutiny is a simple but focused application, with a couple of core features:

- Web UI Dashboard - focused on Critical metrics
- smartd integration (no re-inventing the wheel)
- Auto-detection of all connected hard-drives
- S.M.A.R.T metric tracking for historical trends
- Customized thresholds using real world failure rates
- Temperature tracking
- Provided as an all-in-one Docker image (but can be installed manually)
- Configurable Alerting/Notifications via Webhooks
- (Future) Hard Drive performance testing & tracking

 Getting Started

 RAID/Virtual Drives

Scrutiny uses smartctl --scan to detect devices/drives.

- All RAID controllers supported by smartctl are automatically supported by Scrutiny.
    - While some RAID controllers support passing through the underlying SMART data to smartctl others do not.
    - In some cases --scan does not correctly detect the device type, returning incomplete SMART data.
    Scrutiny supports overriding detected device type via the config file: see example.collector.yaml
- If you use docker, you must pass through the RAID virtual disk to the container using --device (see below)
    - This device may be in /dev/ or /dev/bus/.
    - If you're unsure, run smartctl --scan on your host, and pass all listed devices to the container.

See docs/TROUBLESHOOTING_DEVICE_COLLECTOR.md for help

 Docker

 [!IMPORTANT]
 Using latest- tags is dangerous as it can update your image wi