# zfsmon

zfsmon is a simple monitoring tool for ZFS. You can run it in regular intervals with cron
and it will send you email notifications when

- a scrub completes
- new read/write/checksum errors occurred
- a vdev becomes degraded/offline
- you are running low on disk space

```
*/5 * * * * /usr/bin/zfsmon -pool tank -m name@example.com
```

## CLI arguments
- `-pool` Name of the ZFS pool to monitor
- `-sendmail` Path to the sendmail-compatible application that sends the emails (`sendmail` by default)
- `-m` E-Mail address
- `-f` File to store last scan result for comparison (default: ./last_scan.yaml or /etc/zfsmon/last_scan.yaml if running as root)
- `-log` Log file (default: ./zfsmon.log or /etc/zfsmon/zfsmon.log if running as root)
- `-space` Pool fill level in percent to warn at (default: 90%)