January 2Jan 2 I had many consecutives energy shutdown and I had some problem with my unraid....The pen drive get corrupted and I manage to get an old backup (the one in the unraid cloud didn't work), but The configuration of the array was a little diferent.... When I get the system up again one of the disk is Unmountable: wrong or no file system... But, i think because I use a backup with different config, the system start to do a a parity check.... I cancel it.I tried to mount the drive with unassigned Devices, but it fail....What can I do to save the data of this disk?The SMART report is attached, if it helps to find out the problem. servidor-unraid-smart-20260102-1000.zip
January 2Jan 2 Author Here is the print of the main tab with the error. 5523ab4a-cc63-45d4-beb1-2b537f9579d1.jfif
January 2Jan 2 Community Expert Disk1 mounted but is detecting data corruoting:errors: 5 data errors, use '-v' for a listDisk2 failed to mount because metafda is corrupt:Jan 2 09:30:31 Servidor-unRAID emhttpd: status: The pool metadata is corrupted.Jan 2 09:30:31 Servidor-unRAID emhttpd: action: The pool cannot be imported due to damaged devices or data.More corruption in one of the pools:Jan 2 09:30:39 Servidor-unRAID emhttpd: pool: nvmeJan 2 09:30:39 Servidor-unRAID emhttpd: state: ONLINEJan 2 09:30:39 Servidor-unRAID emhttpd: status: One or more devices has experienced an error resulting in dataJan 2 09:30:39 Servidor-unRAID emhttpd: corruption. Applications may be affected.Jan 2 09:30:39 Servidor-unRAID emhttpd: errors: 9 data errors, use '-v' for a listMy first recommendation would be to run Memtest; that could be the result of bad RAM, and if it is, trying anything else with it may make things worse.
January 2Jan 2 Author I had a problem with the RAM, but already solve it... I was a BIOS config bug... Reset the BIOS and solve the problem.
January 2Jan 2 Community Expert RAM problem may be solved, but the pools are still corrupt, and disk2 may not be recoverable, you can try disabling ZFS error checking just to see if it can mounts, type:echo 0 >/sys/module/zfs/parameters/spa_load_verify_dataecho 0 >/sys/module/zfs/parameters/spa_load_verify_metadataThen see if it mounts read-onlyzpool import -o readonly=on disk2 -f
January 2Jan 2 Author 3 minutes ago, JorgeB said:zpool import -o readonly=on disk2 -fI got this...cannot import 'disk2': I/O error Destroy and re-create the pool from a backup source.
January 2Jan 2 Author 3 minutes ago, JorgeB said:the pools are still corruptWhat can I do to solve this problem?
January 2Jan 2 Community Expert You can try a file recovery app, like UFS Explorer; the free trial should show if it can recover anything. Other than that, this is the other option:19 minutes ago, diogomadeira said:Destroy and re-create the pool froma backup source.20 minutes ago, diogomadeira said:What can I do to solve this problem?For the filesystems that have corruption but still mount, you can use zpool status -v to see the list of the corrupt files, then delete them/restore from a backup and run a scrub until there are no more errors found.
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