Hi all,

after a power outage (UPS is ordered already…) one of my data disks in Unraid got disabled with a filesystem error.

Setup / situation:

• Unraid version: 7.2.0

• Data disk (not parity)

• Filesystem: XFS encrypted

• Disk shows as “missing (disabled), contents emulated”

What I did so far:

1. Stopped the array

2. Ran the filesystem check / repair (xfs_repair) via the Unraid GUI

3. Cleared the log

4. Disk itself looks healthy and is detected normally

Current problem:
When I try to re-assign the disk to its original slot:

• The disk appears in the dropdown

• I select it

• The UI refreshes

• The disk immediately disappears from the dropdown again

• In this disabled slot there is no “No Device” option

• The slot always stays at “missing (disabled), contents emulated”

• Even after starting the array once with the disk missing and stopping it again, the slot never becomes truly empty

Because of this, I cannot re-attach the disk and start a rebuild.

Has anyone seen this behavior before?
Is Tools → New Config (preserve all assignments) the correct/safe way forward here, or is there another recommended approach for encrypted XFS disks in this state?

Thanks a lot for any advice!

main-diagnostics-20251215-0045.zip

There are ATA erros logged, check/repace both cables for that disk and try again.