May 29, 20242 yr I just fired up Plex to watch a few TV shows and noticed that large chunks of TV episodes were missing. When I had a look at my Unraid server I noticed that Disk 6 is acting really strange. I've had a few disks die on me, but I've never had this happen. In the Unraid UI the file contents of disk 6 - rather than listing my shares - seems to be listing the contents of the underlying OS root! This can't be good. When I bring up a terminal window and use mc tolist the contents of /mnt everything appears AOK except for disk6 which is listed in red and has a question mark in front of it! When I double-click on "disk6" mc states "Error: Cannot read directory contents" This can't be good. I am crossing fingers, hoping that if I do a reboot my Disk 6 will magically re-appear... My syslog looks like this: I have dumped the diagnostics file. Looking at syslog1.txt I can see lines like this: May 28 18:24:37 Tower kernel: XFS (md6p1): Corruption detected. Unmount and run xfs_repair I just watched SpaceInvader One's video "How to fix XFS File System Corruption on an Unraid Server" and I am starting to feel a little bit better. Before I commit to the XFS repair I was hoping the Unraid brains trust could chime in and let me know if I am heading in the right direction? Cheers, Jaso tower-diagnostics-20240529-1811.zip Edited May 29, 20242 yr by jaso edit 1: added Unraid version to topic. Edit 2: marked as solved
May 29, 20242 yr Community Expert Solution Before checking filesystem replace the cables on disk6, since there are constant ATA errors, and probably what caused the issues, then run xfs_repair.
May 29, 20242 yr Author 8 minutes ago, JorgeB said: Before checking filesystem replace the cables on disk6, since there are constant ATA errors, and probably what caused the issues, then run xfs_repair. Thanks JorgeB - will do. I did a parity check the other day and it makes my components run HOT and I always get a lot of ATA errors. I usually prop up a fan to the server when that happens but forgot to do it this time. (The irony is that I ordered new kit lat week (mobo, CPU, ram, case, PSU, HBA, etc.) to migrate my drives into a new Unraid host. They are sitting in the courier depots and will probably arrive tomorrow.)
May 29, 20242 yr Author Update: Replaced data cables for disk6 executed a xfs repair on Disk6 from Unraid UI, which took about 5 minutes repair went pretty good - there were only a handful of files that were placed in lost+found folder, which took about 20 minutes of renaming and moving. Question: Can I trust the parity status or do I need to redo parity?
May 29, 20242 yr Community Expert Parity is maintained during filesystem repair, assuming it was correctly done, e.g., using the WebGUI.
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