Hello,

I am still having problems shutting down my server cleanly... Every update is a nightmare for me. I often end up with hard shutdown :( Like this time, where the UI stopped responding at some time and I could not ssh into the instance too.

After the startup I see one of my disks is disabled. I did an XFS check xfs_repair -n /dev/mapper/md2p1 | tee /tmp/disk2_xfs_dryrun.log and then an XFS repair xfs_repair /dev/mapper/md2p1 | tee /tmp/disk2_xfs_repair.log of the disk2 which completed successfully While srray was started in Maintenance mode). The I stopped the array and started in normal mode hoping the disk will be back to normal, but it is stil shown as disabled and the contents is emulated.

The disk seems ok. SMART test results are ok. The parity disk and the rest of the 3 disks of the array are shown as ok.

Please see attached the diagnostics.

Before I mess up irreversibly, wanted to consult with you guys, what are my next steps?

nedio-server-diagnostics-20250526-1523.zip

After a disk gets disabled, it must be rebuilt, if the emulated disk is still mounting and contents look correct, you can rebuild on top, it may be a good idea to replace cables before, just to rule that out.

https://docs.unraid.net/unraid-os/manual/storage-management#rebuilding-a-drive-onto-itself

Thank you for the swift reply @JorgeB

Hmmm, last time I had the issue with disk 2 (back then I ended up replacing the HDD). See the thread here: https://forums.unraid.net/topic/186498-700-disk-error-xfs-dm-2-metadata-io-error

Now before rebuilding it onto itself, I will indeed have to ckeck the cable.

What should I be looking for with the cables replacement?

Just use a new/different one.

rebuilding onto inself sorted out the issue. back to green again. thanks!