January 25, 20251 yr I have a zfs disk that is unmountable in my array, I can't find anything on how to recover from this. Is there any way back? I'm starting to regret using zfs file system on my array drives.
January 25, 20251 yr Author 4 hours ago, JorgeB said: Post the output from zpool import pool: disk5 id: 5035721911779965809 state: ONLINE status: Some supported features are not enabled on the pool. (Note that they may be intentionally disabled if the 'compatibility' property is set.) action: The pool can be imported using its name or numeric identifier, though some features will not be available without an explicit 'zpool upgrade'. config: disk5 ONLINE md5p1 ONLINE
January 25, 20251 yr Author 31 minutes ago, JorgeB said: Now type zpool import disk5 and post the results cannot import 'disk5': insufficient replicas Destroy and re-create the pool from a backup source.
January 26, 20251 yr Community Expert Looks like that pool is a goner, try read-only, but it will likely be the same: zpool import -o readonly=on disk5
January 26, 20251 yr Author 3 hours ago, JorgeB said: Looks like that pool is a goner, try read-only, but it will likely be the same: zpool import -o readonly=on disk5 That command ran with no output. I ran it a second time as the disk still shows unmountable and got the following root@Villastromoz:~# zpool import -o readonly=on disk5 cannot import 'disk5': a pool with that name already exists use the form 'zpool import <pool | id> <newpool>' to give it a new name root@Villastromoz:~#
January 26, 20251 yr Community Expert That suggests it worked the 1st time, post the output from zpool status
January 27, 20251 yr Author 13 hours ago, JorgeB said: That suggests it worked the 1st time, post the output from zpool status root@Villastromoz:~# zpool status pool: cache-protected state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: resilvered 46.3G in 02:16:09 with 0 errors on Fri Jan 10 22:48:18 2025 config: NAME STATE READ WRITE CKSUM cache-protected ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 sdh1 ONLINE 0 0 0 sdi1 ONLINE 0 0 0 errors: No known data errors pool: disk1 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM disk1 ONLINE 0 0 0 md1p1 ONLINE 0 0 0 errors: No known data errors pool: disk2 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM disk2 ONLINE 0 0 0 md2p1 ONLINE 0 0 0 errors: No known data errors pool: disk3 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: scrub repaired 0B in 17:11:02 with 0 errors on Sat Jan 25 17:11:03 2025 config: NAME STATE READ WRITE CKSUM disk3 ONLINE 0 0 0 md3p1 ONLINE 0 0 0 errors: No known data errors pool: disk4 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: scrub repaired 0B in 13:29:09 with 0 errors on Sun Jan 26 13:29:11 2025 config: NAME STATE READ WRITE CKSUM disk4 ONLINE 0 0 0 md4p1 ONLINE 0 0 0 errors: No known data errors pool: disk5 state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A config: NAME STATE READ WRITE CKSUM disk5 ONLINE 0 0 0 md5p1 ONLINE 0 0 16 errors: 2 data errors, use '-v' for a list pool: disk6 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM disk6 ONLINE 0 0 0 md6p1 ONLINE 0 0 0 errors: No known data errors root@Villastromoz:~# zpool status -v pool: cache-protected state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: resilvered 46.3G in 02:16:09 with 0 errors on Fri Jan 10 22:48:18 2025 config: NAME STATE READ WRITE CKSUM cache-protected ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 sdh1 ONLINE 0 0 0 sdi1 ONLINE 0 0 0 errors: No known data errors pool: disk1 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM disk1 ONLINE 0 0 0 md1p1 ONLINE 0 0 0 errors: No known data errors pool: disk2 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM disk2 ONLINE 0 0 0 md2p1 ONLINE 0 0 0 errors: No known data errors pool: disk3 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: scrub repaired 0B in 17:11:02 with 0 errors on Sat Jan 25 17:11:03 2025 config: NAME STATE READ WRITE CKSUM disk3 ONLINE 0 0 0 md3p1 ONLINE 0 0 0 errors: No known data errors pool: disk4 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. scan: scrub repaired 0B in 13:29:09 with 0 errors on Sun Jan 26 13:29:11 2025 config: NAME STATE READ WRITE CKSUM disk4 ONLINE 0 0 0 md4p1 ONLINE 0 0 0 errors: No known data errors pool: disk5 state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A config: NAME STATE READ WRITE CKSUM disk5 ONLINE 0 0 0 md5p1 ONLINE 0 0 16 errors: Permanent errors have been detected in the following files: disk5/data:<0x0> pool: disk6 state: ONLINE status: Some supported and requested features are not enabled on the pool. The pool can still be used, but some features are unavailable. action: Enable all features using 'zpool upgrade'. Once this is done, the pool may no longer be accessible by software that does not support the features. See zpool-features(7) for details. config: NAME STATE READ WRITE CKSUM disk6 ONLINE 0 0 0 md6p1 ONLINE 0 0 0 errors: No known data errors root@Villastromoz:~#
January 27, 20251 yr Community Expert Solution 5 hours ago, Glenj48 said: pool: disk5 state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. Pool is online, though there are some corrupt file(s), you can check with -v, in any case, backup what you can to other disk(s), then reformat that disk, data will be under /mnt/disk5
January 27, 20251 yr Author 6 hours ago, JorgeB said: Pool is online, though there are some corrupt file(s), you can check with -v, in any case, backup what you can to other disk(s), then reformat that disk, data will be under /mnt/disk5 Using unbalanced to scatter the data to other discs thank you.
January 28, 20251 yr Author One last question, I opted to use Krusader to copy the data to 2 usb drives. After I format drive should I use Krusader to move the data back to disk 5 directly or should I just move it into the shares and let the server decide where to put it?
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