I have two parity disks that worked fine until one didn't. I went to bed and everything was fine, I woke up and my 2nd parity disk was marked with a red x that when hovered said "Parity device is disabled". From what I know to look for in the logs, things are reported as healthy. I ran a parity check and things were fine. I stopped and started the array, and rebooted the system as well. It's always reported as disabled and I can't find errors as to why. I can see in the logs where the disk is imported with no errors.

Not sure how to debug this further at this point.

Unraid 7.2.2

Diagnostics attached.

diagnostics-20260706-1247.zip

Edited Monday at 04:52 PM1 day by kamcknig

Disk was already disabled at boot, so we can't see what happened, SMART looks fine, so check/replace cables and resync parity.

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

Thanks, I'll report back tomorrow. It's rebuilding now.