cliffdog510 Posted July 3, 2023 Share Posted July 3, 2023 Looking for general advice or a sanity check. During a scheduled parity check, one of my two parity drives plus drive 1 of the array became "Disabled." Weird but ok...I take the array offline and run extended SMART tests on both drives, they both pass. I remove them both from the array, add them back, and start the array again, which automatically starts to rebuild the array. During the rebuild, I notice disk 10 is returning millions of errors, nearly as many as the writes. I stop the array again, run extended SMART on disk 10, which also passes. I start to rebuild again. Disk 10 still throws errors, but now disks 3 and 8 are also throwing errors. The rebuild fails, obviously. And just as a cherry on top...the crappy old 2TB drive I was using as a cache for torrent downloads is also showing a SMART error. Five stage of grief later, and I've come to grips with all my data being gone. Luckily it wasn't anything I can't just download again with enough time and patience. I'm more interested to know how this could have happened, especially with no prior warning?? I have notifications on, they all go to my private Discord server and I get them instantly on my phone, and there was no prior warning for any of this. I'm not using a UPS, could this have been a power event? Do I need to replace ALL the drives with errors, or can I pre-clear them and start a new array if they pass extended SMART? Cheers, --unraid-diagnostics-20230703-0603.zip Quote Link to comment
JorgeB Posted July 3, 2023 Share Posted July 3, 2023 Log only shows the first issue with disk10, that disk dropped offline, SMART looks good, looks more like a power/connection issue, replace cables and try again. Quote Link to comment
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