Hi everybody,
I've mdadm that is running on Debian bookworm that it scans my RAID 5
array. It happened that after a cycle of hard reboot due to system
freeze, mdadm starts resync the array.
I noticed this looking at the red LED of the HDD activity almost always
fired up and the "top" utility that it showed mdadm at 100% of cpu usage.
I dunno if all it's OK, here my /proc/mdstat output:
~# cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0]
[raid1] [raid10]
md0 : active raid5 sda1[0] sdc1[2] sdd1[3](S) sdb1[1]
1953258496 blocks super 1.2 level 5, 512k chunk, algorithm 2
[3/3] [UUU]
unused devices: <none>
I was amazed that mdadm doesn't warn me of the re-syncing process had
started via an email. If I run:
~# mdadm --monitor --scan --test --oneshot
I've the email test-message in my inbox regularly. So is it possible to
be warned via email when an array resync process has started? Of which
RAID array failures does mdadm warn the user by sending an email?
Thanks in advance
Cheers
--
Franco Martelli
