May 17, 20251 yr Updgraded unraid to 7.1.2 and noticed my ZFS pools were unmountable. I did the wipefs -a -t zfs_member /dev/sdb1 command and still not mountable. Rebooted my server and now getting a backup_pool: mount error: wrong or no file system and a cache: mount error: no file system When I run wipefs /dev/sdb1, nothing is returned. Any help would be appreciated here.
May 18, 20251 yr Community Expert You should never run commands from a post intended for another user, if the devices were zfs, doing that would delete the zfs signature.
May 19, 20251 yr Author Yeah realizing that now, are there any commands to recover zfs filesystem or do I need to format the drive and start from scratch?
May 19, 20251 yr Community Expert As far as I know, there's no way to recover, a file recovery app like UFS explorer might still be able to recover the data, but never tested in a situation like this.
July 11, 2025Jul 11 Author Solution Hello, just to close this thread. UFS was able to recover my SSD partially but wasn't due to SSD failure. So I am pretty convinced that UFS explorer could have completely recovered by ZFS SSD disk.Thank you for your help.
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