July 3, 20188 yr Hi! For over a year I had every single array health report ending without a problem, today I find this message: unRAID Status: 02-07-2018 00:20 Notice [NAS] - array health report [FAIL] Array has 8 disks (including parity & cache) SMART shows that all drives are OK, in Main tab I have two drives showing errors. Parity check found 0 errors just 2 days ago. I've attached diagnostics. I will appreciate help on this matter, I don't know if I should go buy new drives... nas-diagnostics-20180703-1514.zip Edited July 3, 20188 yr by Trylo
July 3, 20188 yr Community Expert 15 minutes ago, Trylo said: I don't know if I should go buy new drives... You should. Replace disk2 first since it's in worst shape, but you might read errors on disk3 during the rebuild, maybe not with some luck.
July 3, 20188 yr Author OK, on one of them I still have a warranty (Disk 3), is it ok, to replace Disk 2 first, when it rebuilds then unmount Disk 3 and send it to WD?
July 3, 20188 yr Author I think I will just buy two new drives and replace both of them. The replacement drive can take up to 3 weeks, so when that one arrives I will simply replace that 1TB drive in the array... I can't believe that two drives failed at the same time...
July 3, 20188 yr Community Expert They didin't completely fail, especially disk3, and like I said you might get lucky and there won't be errors during the rebuild of disk2, but SMART is showing read raw errors, and once they start getting read errors it's likely to only get worse with time, so they should be replaced as soon as possible.
July 3, 20188 yr Author OK, I've shut down the machine and ordered new drives. I will swap first disk2 and after it rebuilds I will swap disk3. Thank you very much for your help Johnnie.black!
July 3, 20188 yr Author I've swapped first drive and got this, is there a way to find out which files are messed up? I have CrashPlan so I should be able to recover them:
July 4, 20188 yr Community Expert 9 hours ago, Trylo said: is there a way to find out which files are messed up? Only if you have preexisting checksums for your files (or were using btrfs as the filesystem).
July 4, 20188 yr Author I guess, I just ignore it and if I find messed up file I will dig for it in CrashPlan.
July 4, 20188 yr Community Expert There's another option if you're willing, mount old disk2 outside the array, every file successfully copied from it should be OK and be used to replace the existing files on the rebuilt disk, any file that can't be copy due to the read errors check or restore from backup.
July 4, 20188 yr Author That is brilliant. On Unraid machine I have 8/8 SATA occupied. Is it possible to read the drive on Windows machine? Will this work? https://medium.com/@matteocontrini/how-to-read-an-xfs-drive-on-windows-with-virtualbox-and-linux-942d74f4644f Edited July 4, 20188 yr by Trylo
July 4, 20188 yr Community Expert Should work fine, you can also for example boot with an Ubuntu live flash drive.
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