Restarted my server via the webgui, appon restart is says my cache drive as unmountable. Any assistance would be appreciated.

Edited December 5, 2025Dec 5 by Slverfox

Please post the diagnostics.

Not sure if you needed the whole zip

tower-diagnostics-20251205-1216.zip

There's an issue with the log, see if this helps:

btrfs rescue zero-log /dev/sdd1

Then restart the array and post new diags.

@Positive thought your thread is here

https://forums.unraid.net/topic/195607-positivethought-cache-unmountable-unsupported-or-no-file-system-after-restart/

Thats what pops up

ran umount /dev/sdd1

then btrfs rescue zero-log /dev/sdd1

The drive seems fine after restarting array

That the diagnostics after restart

tower-diagnostics-20251205-1318.zip

Pool mounted but btrfs is detecting a lot of corruption; recommend running memtest first, then scrub the pool and post the results from the GUI

On 12/6/2025 at 1:43 AM, JorgeB said:

Pool mounted but btrfs is detecting a lot of corruption; recommend running memtest first, then scrub the pool and post the results from the GUI

Ran a mem test on the server for 12 hours no errors found

Edited December 7, 2025Dec 7 by Slverfox

This was the results of the scrub

There were some uncorrectable errors; the corrupt file(s) should be listed in the syslog during the scrub. Those should be deleted/restored from a backup, then scrub the pool again to confirm 0 errors.