systemd/smart-test.timer

; systemd/smart-test.timer
; Weekly Sunday 04:17 UTC short SMART self-test of every rotational disk.

[Unit]
Description=Weekly SMART short self-test
Documentation=https://mercemay.top/src/homelab-compose/

[Timer]
OnCalendar=Sun *-*-* 04:17:00
Persistent=true
RandomizedDelaySec=30m
Unit=smart-test.service

[Install]
WantedBy=timers.target