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.
Theses 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)
- (Future) Configurable Alerting/Notifications via Webhooks
- (Future) Hard Drive performance testing & tracking
- NOTE: If you have **NVMe** drives, you must add `--cap-add SYS_ADMIN` as well. See issue [#26](https://github.com/AnalogJ/scrutiny/issues/26#issuecomment-696817130)
-`analogj/scrutiny` is a omnibus image, containing both the webapp server (frontend & api) as well as the S.M.A.R.T metric collector. (see below)
### Hub/Spoke Deployment
In addition to the Omnibus image (available under the `latest` tag) there are 2 other Docker images available:
-`analogj/scrutiny:collector` - Contains the Scrutiny data collector, `smartctl` binary and cron-like scheduler. You can run one collector on each server.
-`analogj/scrutiny:web` - Contains the Web UI, API and Database. Only one container necessary
Once scrutiny is running, you can open your browser to `http://localhost:8080` and take a look at the dashboard.
Initially it will be empty, however after the first collector run, you'll be greeted with a list of all your hard drives and their current smart status.
The collector is configured to run once a day, but you can trigger it manually by running the following command
```
docker exec scrutiny /scrutiny/bin/scrutiny-collector-metrics run
```
# Configuration
We support a global YAML configuration file that must be located at /scrutiny/config/scrutiny.yaml
Check the [example.scrutiny.yml](example.scrutiny.yaml) file for a fully commented version.
Please see the [CONTRIBUTING.md](CONTRIBUTING.md) for instructions for how to develop and contribute to the scrutiny codebase.
Work your magic and then submit a pull request. We love pull requests!
If you find the documentation lacking, help us out and update this README.md. If you don't have the time to work on Scrutiny, but found something we should know about, please submit an issue.
# Versioning
We use SemVer for versioning. For the versions available, see the tags on this repository.
