--- mdadm/systemd/mdcheck_start.timer~	2021-09-24 16:38:33.610083425 +0800
+++ mdadm/systemd/mdcheck_start.timer	2021-09-24 16:46:36.968506057 +0800
@@ -9,7 +9,7 @@
 Description=MD array scrubbing
 
 [Timer]
-OnCalendar=Sun *-*-1..7 1:00:00
+OnCalendar=Sun *-*-01,02,03,04,05,06,07 1:00:00
 
 [Install]
 WantedBy= mdmonitor.service