Hi everyone,

So i just converted my regular Unraid pool to a ZFS pool, i rsynced 20tb away, removed default unraid pool. created ZFS instead, 2 dataset's and rsynced my 20TB back to my ZFS pool.

However during my ZFS setup and a random reboot at some point my unraid is showing "Unmountable: unsupported or no file system" next to my ZFS pool, along with "unmountable disks in the pool" at the bottom of the page and i should format them again...

https://imgur.com/a/md2wFcl

I've tried the following so far...

• remove the pool & added it back in unraid gui

• done zpool export/import

• zfs scrub (1 corrupt file, removed and re scrubed again ( no errors ))

• countless reboots

• google searching...

i know other people have had similar issues aswell - but so far i haven't been able to resolve my issue based on similar posts...

hope some experienced unraid/zfs/linux people here can help resolve this...

server-diagnostics-20260413-2238.zip

diagnostics if anyone is asking for these...

Before anything else, see here and make the necessary adjustments. Syslog is filled with called traces, and Ryzen with overclocked RAM like you have is known to corrupt data:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-819173

Then boot again and post new diags and the output from zpool import

had a wierd error with "apps" tab in unraid would get some kind of http error that it could not connect and fetch apps to see from app store in unraid... so i did a reboot...

and guess what now ZFS is OK in unraid including "APPS" tab... fucking strange - i've rebooted unraid a million times in the last few days and now it randomly works again with ZFS no longer showing "Unmountable: unsupported or no file system" next to it, aswell as disks ready to format...

Edited April 14Apr 14 by kladze

Recommend checking the logs in a few hours or a couple of days to see if call traces are no longer showing.