January 15, 20215 yr Hey all New to UNRAID, still getting my head wrapped around all of what's involved. I did a clean shutdown and boot on my UNRAID server today, and when it started back up, the docker service failed to initialize, and then after I started the array I noticed that it said one of my disks was unmountable. I clicked on stop, and now the array has been "stopping" for at least 10 minutes. My diagnostics are attached. All I have set up at the moment on here is Plex, Krusader, and Qbitorrent. It's not a huge deal if I need to start from scratch but any help would be greatly appreciated. Please let me know if there is anything else I can provide that would be insightful tower-diagnostics-20210115-1156.zip
January 16, 20215 yr Community Expert Jan 15 11:55:48 Tower root: umount: /mnt/cache: target is busy. Something still using cache, as for the unmountable disk no valid filesystem is being detected, you're sure it was formatted?
January 16, 20215 yr Author Yeah all the disks in the array were formatted and precleared, nothing was amiss, and it was running for over a week with no issues. My apologies, I'm very unfamiliar still - is there something I could do to recover that disk and get it running again?
January 17, 20215 yr Community Expert Run a filesystem check, it might find a backup superblock and recover, but very unusual for the superblock to be missing/damaged.
January 21, 20215 yr Author Okay so I finally got some time to take a look at this again. When following the guide you linked, I don't get the menu for filesystem check for the disk in question (disk 1). It shows the "Disk 1 Settings" section, and then straight into "SMART Settings". The "file system type" just reads "auto" When I tab over to disk 2, I get all the correct options and sub menus, and the file system type reads xfs. Can I replace this drive so I can recover the information? Or would it be better to just replace the disk and restart from scratch? I'm also not 100% sure now that I have another 4tb drive to replace it with.
January 21, 20215 yr Community Expert Rebuilding an unmountable disk will result in an unmountable disk. You need to repair it. Do you know what filesystem it was?
January 22, 20215 yr Community Expert Assuming it was xfs change the fs to xfs to be able to use the GUI check, alternatively you can use the CLI.
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