Cache drive not mounting to unassigned device. plz help.

[annoor123]

I had 2 cache drive with raid 1 and it started to have this problem where it would just stop being able to write to after a few mins of restarting. So, I though since it’s raid 1 I’ll just put one into undersigned devices and copy the data over to the other after formatting. But I get this error when trying to mount the drive to unassigned devices. Plz I need help

 

 

Mar 4 09:28:38 Tower unassigned.devices: Adding disk '/dev/sdf1'... Mar 4 09:28:38 Tower unassigned.devices: Mount drive command: /sbin/mount -t btrfs -o rw,auto,async,noatime,nodiratime,discard '/dev/sdf1' '/mnt/disks/Samsung_SSD_860_EVO_1TB_S5B3NY' Mar 4 09:28:38 Tower kernel: BTRFS info (device sdf1): turning on sync discard Mar 4 09:28:38 Tower kernel: BTRFS info (device sdf1): disk space caching is enabled Mar 4 09:28:38 Tower kernel: BTRFS info (device sdf1): has skinny extents Mar 4 09:28:38 Tower kernel: BTRFS error (device sdf1): devid 1 uuid d721e849-7541-47b3-8eb4-065e7e84f756 is missing Mar 4 09:28:38 Tower kernel: BTRFS error (device sdf1): failed to read the system array: -2 Mar 4 09:28:38 Tower kernel: BTRFS error (device sdf1): open_ctree failed Mar 4 09:28:38 Tower unassigned.devices: Mount of '/dev/sdf1' failed. Error message: mount: /mnt/disks/Samsung_SSD_860_EVO_1TB_S5B3NY: wrong fs type, bad option, bad superblock on /dev/sdf1, missing codepage or helper program, or other error. Mar 4 09:28:38 Tower unassigned.devices: Partition 'Samsung_SSD_860_EVO_1TB_S5B3NY' cannot be mounted.

[JorgeB]

UD doesn't allow degraded mounts, there are some recovery options here.