Hi all,

Woke up to my server listing 2 disks disabled.

Mustve been found as part of the monthly parity check.

Seems 4 drives have errors.

Disk 1 seems to be in worse shape than disk 3.

Am I right to keep the read check going, shutting down and checking all connections, then doing a disk dance for disk 3 then probably physically replacing disk 1?

Diagnostics attached

Thanks alot

plex-diagnostics-20260504-0827.zip

Edited May 4May 4 by flobbernoggin
Spelling

It was an issue with the controller:

May 2 23:01:47 Plex kernel: mpt2sas_cm0 fault info from func: mpt3sas_base_make_ioc_ready

May 2 23:01:47 Plex kernel: mpt2sas_cm0: fault_state(0x7e23)!

Make sure it's well seated and sufficiently cooled, and post new diags after a reboot with the array started.

Have done as asked, card seems cool.

Starting array took a few more minutes that normal and sdp which was unassigned is no longer there.

Disks are still errored

plex-diagnostics-20260504-1131.zip

2 hours ago, flobbernoggin said:

Disks are still errored

That is expected. Once a disk gets disabled, it needs to be rebuilt.

Both emulated disks are mounting; assuming the contents look correct, you can rebuild on top:

https://docs.unraid.net/unraid-os/using-unraid-to/manage-storage/array/replacing-disks-in-array/#re-enabling-a-disabled-disk-rebuilding-onto-itself

Many thanks.

I have rebuilt successfully.

Any idea what the cause was? Just a glitch with the card perhaps?

1 hour ago, flobbernoggin said:

Any idea what the cause was? Just a glitch with the card perhaps?

Possibly, if it happens again try a different PCIe slot if available