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Harddrive repair noob with questions after getting unmountable drive

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running 6.12.10 and  XFS drives

 

My unraid server had an unclean shutdown. When it came back it started a parity check like normal. I notices that one of the drives was listed as "Unmountable: Unsupported or no file system" where the size and useage are normally displayed. Per the documentation, I ran the check disk with option -n. However other than the name I know nothing about xfs or the xfs_repair tool. I am unsure how to interpret these results or the best way to resolve the issue with out data loss. I assume it is as simple as updating the flags in the webgui and running it again. But the docs also said to bring questions here. 

 

check results:

Phase 1 - find and verify superblock...
Phase 2 - using internal log
        - zero log...
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 1364236085, counted 1388072036
        - 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
        - agno = 4
inode 8591151962 - bad extent starting block number 4503567550846459, offset 0
correcting nextents for inode 8591151962
bad data fork in inode 8591151962
would have cleared inode 8591151962
        - agno = 5
        - agno = 6
        - agno = 7
        - agno = 8
        - agno = 9
        - agno = 10
        - agno = 11
        - agno = 12
        - process newly discovered inodes...
Phase 4 - check for duplicate blocks...
        - setting up duplicate extent list...
        - check for inodes claiming duplicate blocks...
        - agno = 0
        - agno = 3
        - agno = 1
        - agno = 2
        - agno = 4
        - agno = 5
entry "IMG_1351.JPG" at block 5 offset 264 in directory inode 8590286505 references free inode 8591151962
	would clear inode number in entry at offset 264...
        - agno = 6
inode 8591151962 - bad extent starting block number 4503567550846459, offset 0
correcting nextents for inode 8591151962
bad data fork in inode 8591151962
would have cleared inode 8591151962
        - agno = 7
        - agno = 8
        - agno = 9
        - agno = 10
        - agno = 11
        - agno = 12
No modify flag set, skipping phase 5
Phase 6 - check inode connectivity...
        - traversing filesystem ...
entry "IMG_1351.JPG" in directory inode 8590286505 points to free inode 8591151962, would junk entry
would rebuild directory inode 8590286505
        - traversal finished ...
        - moving disconnected inodes to lost+found ...
Phase 7 - verify link counts...
No modify flag set, skipping filesystem flush and exiting.

 

 

 

thanks in advance, 

slartibartfast-diagnostics-20240820-1647.zip

Solved by itimpi

  • Community Expert
  • Solution

You need to run without -n (the no modify flag) or nothing will be done.   If it asks for it add -L.

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