April 16, 20251 yr I have been seeing some disk errors randomly over the last couple weeks but nothing that looked bad and the SMART test looked ok. Today things started happening with all kinds of read errors resulting in having to hard boot the server. It did come back up and the errors went away for a few minutes until read errros started to show on the Main page. I ran extended SMART on all of the disks. Disk 1 did not finish and said Completed: read failure, disk 2 has several errors but I am not sure if they are a concern or not. I am attaching the diagnostics log and the two smart logs hoping someone can take a peek and give me the news. Thanks for any help! Edit: I forgot to add that most of my disks have over 60k hours so it might be time anyways. disk1-netflex-smart-20250416-0603.zip disk2-netflex-smart-20250416-0658.zip netflex-diagnostics-20250416-0657.zip Edited April 16, 20251 yr by Scootter
April 16, 20251 yr Community Expert Solution Every time a disk fails a SMART test, it should be replaced.
April 16, 20251 yr Community Expert Doesn't look like you have run an extended self-test on disk2 recently.
April 16, 20251 yr Community Expert 1 hour ago, Scootter said: most of my disks have over 60k hours 2 minutes ago, trurl said: Doesn't look like you have run an extended self-test on disk2 recently. Wouldn't hurt to do extended self-test on the others too.
April 16, 20251 yr Author 25 minutes ago, JorgeB said: Every time a disk fails a SMART test, it should be replaced. Will do and good to know, thanks! 17 minutes ago, trurl said: Wouldn't hurt to do extended self-test on the others too. Thank you very much, I will run it on the rest.
April 16, 20251 yr Author I think I will have some work ahead of me as I have 2 so far that are dying. At least parity, disk2 and disk3 are looking good at the moment. I am learning what I didn't know 7 years ago, buy all the same drives in the same order and they might start all failing around the same time! disk4 disk1
April 16, 20251 yr Community Expert 6 minutes ago, Scootter said: 2 so far that are dying. At least parity, disk2 and disk3 are looking good at the moment. I am learning what I didn't know 7 years ago Did you also know that in order to reliably rebuild a disk, Unraid must be able to reliably read ALL other disks? Do you have another copy of anything important and irreplaceable?
April 16, 20251 yr Author 11 minutes ago, trurl said: Did you also know that in order to reliably rebuild a disk, Unraid must be able to reliably read ALL other disks? Do you have another copy of anything important and irreplaceable? I just knew I could only have 1 drive go bad with my 1 parity drive setup. Thankfully I am good with my backups and anything important, thanks for the heads up though!
April 16, 20251 yr Community Expert 11 minutes ago, Scootter said: I could only have 1 drive go bad with my 1 parity drive setup 24 minutes ago, trurl said: to reliably rebuild a disk, Unraid must be able to reliably read ALL other disks https://docs.unraid.net/unraid-os/overview/nas/#parity-protected-array Don't be surprised if there are problems rebuilding any of these to a new disk.
April 16, 20251 yr Community Expert If you have been able to complete regular parity checks might be OK
April 17, 20251 yr Author Parity checks have been fine and the other drives checked ok. I already have a couple of new drives on the way and double checked my backups so I should be good even the rest of them fail. Thank you for your prompt help!
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