October 7, 20223 yr Hi all, My nextcloud server recently shut down ungracefully. Upon reboot, I noticed that some files that were listed in my cloud were not accessible anymore. Upon closer inspection, I noticed one of my drives not mounting due to a "Unmountable: Wrong or no file system" error. My current setup (diagnostics attached): 5 4TB drives (2 parity, 3 data), xfs encrypted (not sure if that changes the recovery process) 1 cache pool of 2 1TB nvme drives in RAID1, btrfs encrypted I do have a versioned backup of all my files, but I hope I can avoid recovering from that, as it is a very slow process to do so. trantor-diagnostics-20221007-0822.zip
October 7, 20223 yr Author Thx for the response, I ran the xfs_repair -nv: Phase 1 - find and verify superblock... - block cache size set to 1480768 entries Phase 2 - using internal log - zero log... zero_log: head block 2972053 tail block 2972049 ALERT: The filesystem has valuable metadata changes in a log which is being ignored because the -n option was used. Expect spurious inconsistencies which may be resolved by first mounting the filesystem to replay the log. - scan filesystem freespace and inode maps... sb_fdblocks 122015995, counted 128830882 - found root inode chunk Phase 3 - for each AG... - scan (but don't clear) agi unlinked lists... - process known inodes and perform inode discovery... - agno = 0 - agno = 1 - agno = 2 - agno = 3 inode 6959670454 - bad extent starting block number 4503567551028270, offset 0 correcting nextents for inode 6959670454 bad data fork in inode 6959670454 would have cleared inode 6959670454 - process newly discovered inodes... Phase 4 - check for duplicate blocks... - setting up duplicate extent list... - check for inodes claiming duplicate blocks... - agno = 0 - agno = 1 - agno = 3 - agno = 2 entry "redacted.txt" at block 4 offset 2368 in directory inode 6959661560 references free inode 6959670454 would clear inode number in entry at offset 2368... inode 6959670454 - bad extent starting block number 4503567551028270, offset 0 correcting nextents for inode 6959670454 bad data fork in inode 6959670454 would have cleared inode 6959670454 No modify flag set, skipping phase 5 Phase 6 - check inode connectivity... - traversing filesystem ... - agno = 0 - agno = 1 - agno = 2 - agno = 3 entry "redacted2.txt" in directory inode 6959661560 points to free inode 6959670454, would junk entry bad hash table for directory inode 6959661560 (no data entry): would rebuild would rebuild directory inode 6959661560 - traversal finished ... - moving disconnected inodes to lost+found ... Phase 7 - verify link counts... No modify flag set, skipping filesystem flush and exiting. XFS_REPAIR Summary Fri Oct 7 11:04:44 2022 Phase Start End Duration Phase 1: 10/07 11:04:06 10/07 11:04:07 1 second Phase 2: 10/07 11:04:07 10/07 11:04:08 1 second Phase 3: 10/07 11:04:08 10/07 11:04:28 20 seconds Phase 4: 10/07 11:04:28 10/07 11:04:28 Phase 5: Skipped Phase 6: 10/07 11:04:28 10/07 11:04:44 16 seconds Phase 7: 10/07 11:04:44 10/07 11:04:44 Total run time: 38 seconds I am not quite sure what to do, if I run the xfs_repair without the -n flag, it says something like "The filesystem has valuable metadata changes in a log, mount the drive first", which I cannot do in its current state does that mean I have to run the xfs_repair with the -l flag while in maintenance mode?
October 7, 20223 yr Community Expert Solution 19 minutes ago, Abstract7227 said: does that mean I have to run the xfs_repair with the -l flag while in maintenance mode? Correct.
October 7, 20223 yr Author Hi JorgeB, Thx for the guidance, The disk is mounted again and the files that I could not previously access are now back. Should I be worried on data loss? I assume the parity check will find some errors? Can I assume the "bad" files will be the ones that were last written?
October 7, 20223 yr Community Expert Look for a lost+found folder in that disk, any lost/incomplete files would go there, parity might find sync errors because of the shutdown, not the filesystem repair. 10 minutes ago, Abstract7227 said: Can I assume the "bad" files will be the ones that were last written? Any data being written at the time of the unclean shutdown can be damaged/lost, remaining data should be fine.
October 7, 20223 yr Author is that in the root directory of that disk? I can't see any lost+found folder (also looked for hidden folders). I also noticed that all my shares are configured as high-water, and that another disk is currently the one getting filled during a move. So I guess I am safe of any data loss then?
October 7, 20223 yr Community Expert 5 minutes ago, Abstract7227 said: is that in the root directory of that disk? Yes, go to Shares, if there's no lost+found share it's because one doesn't exist, and that's good news.
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