October 18, 20223 yr Hi there, I just revived my old unRaid system and unfortunately it seems like one disk is somehow not usable anymore. I get I/O errors during parity rebuild. I changed the cable but it is still having issues. It doesn't seem to want to do a SMART test. What infos can I provide?
October 18, 20223 yr Community Expert Disk dropped offline, that's why there's no SMART, you should check/replace cables and then post diags, assuming it's v6.
October 18, 20223 yr Author I changed cables for new ones today. Restarted the NAS and did a short SMART Test. I'm starting an extended test right now cerebrum-smart-20221018-1657.zip
October 18, 20223 yr Community Expert 1 hour ago, kysriel said: upgrade to 6.11.1 attach diagnostics to your NEXT post in this thread
October 18, 20223 yr Community Expert 1 hour ago, kysriel said: extended test You will have to disable spindown on the disk
October 18, 20223 yr 1 hour ago, trurl said: You will have to disable spindown on the disk I think that now you cannot run an extended SMART if spin down is active.
October 19, 20223 yr Author Changed SATA cable and gave the drive a seperate power line (same PSU though since I don't have a spare one). While rebuilding parity again errors occured and the drive disabled. All other drives are fine. Since I'm thinking of upgrading the NAS anyways I could just buy a new PSU first. cerebrum-diagnostics-20221019-1936.zip
October 19, 20223 yr Community Expert If you used new cables it could be a bad disk, but PSU is also a possibility, try again after replacing which ever is more convenient to you first.
October 21, 20223 yr Author I connected the disk in question to the PSU of my desktop PC (totally separate power connection). Still the same occured during parity build. What I noticed was, that at some point CPU load went to 100% on both cores and I wouldn't see any updates on the Main window. UI was still responsive. After the load dropped again, then I got the errors. Could this be a load issue with the CPU? Currently I'm trying to get a cheap i5-2400 and 8GB ram for a small upograde. Intel® Celeron® CPU G1620 @ 2.70GHz ASUSTeK COMPUTER INC. P8H77-I , Version Rev X.0x 4GB RAM cerebrum-diagnostics-20221021-0911.zip
October 21, 20223 yr Community Expert 57 minutes ago, kysriel said: Could this be a load issue with the CPU? Don't think probably just a failing disk.
October 24, 20223 yr Author I got a new 3tb wd red and still face the same issue. Drive fails after approx 12% parity build with 1024 errors. Could it be the mainboard? cerebrum-diagnostics-20221024-0959.zip Edited October 24, 20223 yr by kysriel
October 24, 20223 yr Community Expert Solution First set the SATA controller to AHCI, it's set to IDE, then try again.
October 24, 20223 yr Author Thank you so much! That was it. Parity is up again! I think the setting may have dropped because the MB battery died.
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