Help with Unmountable Disk

[BazzaUK]

Hi all,

 

I'm am having an issue with a SSD disk which happened today randomly (no power-cut, unclean shutdown etc). I received a notification this morning which said:

 

Quote

Event: Unraid Status
Subject: Notice [LANTRIXNAS] - array health report [FAIL]
Description: Array has 3 disks
Importance: warning

Disk 1 - SanDisk_SDSSDH31000G_181290801757 (sdd) - active 34 C [OK]
Disk 2 - SanDisk_SDSSDH31000G_181290802363 (sdc) - standby (disk has read errors) [NOK]
Disk 3 - Samsung_SSD_850_EVO_120GB_S21UNSAG193784Y (sdb) - standby [OK]

Parity is valid
Last checked on Fri 1 Sep 2023 03:22:34 AM PDT (61 days ago), finding 0 errors.
Duration: 2 hours, 1 minute, 39 seconds. Average speed: 137.0 MB/s

 

And drive 2 has since begun giving this error in the dashboard: Unmountable: Unsupported or no file system. Yesterday, it was perfectly fine.

 

I have since run a SMART test on that drive, which reports no errors. I have also tried running xfs_repair while in maintenance mode and it comes back asking me to run it with -L as it wont mount. This results in:

 

Quote

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 destroyed because the -L option was used. xfs_repair: libxfs_device_zero write failed: Input/output error

 

It appears all my data is still available on Disk 1 and I can access it (and the dockers etc). I have since run a backup of the system using the  "Appdata Backup" plugin and downloaded it to my computer just incase.

 

Any help would be much appreciated about the next steps I could try to either recover the drive (not sure if there is anything on there to recover) or to wipe that particular drive and reformat it, then add it back to the array.

 

Many thanks in advance, I do appreciate it.

 

Baz

 

lantrixnas-diagnostics-20231101-1448.zip

[JorgeB]

Power down, replace cables for disk2, post new diags after array start.

[BazzaUK]

I tried replacing the cables and the drive was still having I/O Errors. I think the SSD had actually died. Replaced the drive and it now works fine. It wasn't a particularly old SSD either, which is worrying.

 

Thanks for your help and suggestion JorgeB