Trylo Posted July 3, 2018 Share Posted July 3, 2018 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 Link to comment
JorgeB Posted July 3, 2018 Share Posted July 3, 2018 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. Link to comment
Trylo Posted July 3, 2018 Author Share Posted July 3, 2018 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? Link to comment
JorgeB Posted July 3, 2018 Share Posted July 3, 2018 OK yes, but array will be unprotected if another disk fails. Link to comment
Trylo Posted July 3, 2018 Author Share Posted July 3, 2018 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... Link to comment
JorgeB Posted July 3, 2018 Share Posted July 3, 2018 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. Link to comment
Trylo Posted July 3, 2018 Author Share Posted July 3, 2018 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! Link to comment
Trylo Posted July 3, 2018 Author Share Posted July 3, 2018 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: Link to comment
JorgeB Posted July 4, 2018 Share Posted July 4, 2018 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). Link to comment
Trylo Posted July 4, 2018 Author Share Posted July 4, 2018 I guess, I just ignore it and if I find messed up file I will dig for it in CrashPlan. Link to comment
JorgeB Posted July 4, 2018 Share Posted July 4, 2018 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. Link to comment
Trylo Posted July 4, 2018 Author Share Posted July 4, 2018 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 Link to comment
JorgeB Posted July 4, 2018 Share Posted July 4, 2018 Should work fine, you can also for example boot with an Ubuntu live flash drive. Link to comment
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