April 3, 20206 yr Hello!, I've been using unRaid from a few years ago and replaced two failed drives before, everithing went smoothly. A few days ago my parity drive failed, bought a replacement (4Tb seagate ironwolf), succesfully precleared it, and started the sync/rebuild... Now I've got an 25 days estimation till completion. I've searched "slow rebuild" in the forums, but all solutions seemed related to slow drives... How can identify if one of my drives is causing this extreme slowdown?. Should i try to stop and reboot the system? I don't know if that can be dangerous since the rebuild has started... In previous rebuilds invested eight, sixteen hours on the worst case, but this is freaking me a little since my data is already unprotected... The diagnostics are attached to this post, thank you in advance for any feedback and sorry for my horrible english tower-diagnostics-20200403-1719.zip Edited April 3, 20206 yr by ladlo
April 3, 20206 yr Community Expert According to the diags it's completely stalled, there's an ATA error for disk1, and it's not reporting SMART data, power down, check/replace cables on disk1 and try again.
April 3, 20206 yr Author Thank you very much johnnie.black ! Re-seated cables, rebooted and it now marks 9-10h for the rebuild. Still got a warning about one 2tb drive though... Could it "inherited" be from the previous fault state? Attached the diagnostics from this fresh boot tower-diagnostics-20200403-1800.zip
April 3, 20206 yr Community Expert With a little luck parity sync will finish without error, but disk1 should be then replaced ASAP.
April 3, 20206 yr Author I'll keep my fingers crossed and follow your advice, I'll replace the drive as soon as posible... probably replace all the SATA cables in the system too for good measure.
April 3, 20206 yr Community Expert 17 minutes ago, ladlo said: probably replace all the SATA cables in the system too for good measure. That's OK but this one was really a disk problem, not cable related.
April 4, 20206 yr Author Parity finished withouth error, lots of thanks for the help. Now doing a extended SMART Test and a few preclear rounds on a 3Tb drive to replace the Toshiba. All drives marked healthy on the dashboard though. Is that normal?, only asking in order to do SMART tests regularly if that screen is a simplification of the health state...
April 4, 20206 yr Community Expert 2 hours ago, ladlo said: Is that normal? Likely that SMART attribute is no longer failing now, please post new diags
April 4, 20206 yr Author The extended SMART test ended withouth error... The diags for the system and the smart test are attached,and the seek error rate returned to 100 value vs 67 threshold... tower-diagnostics-20200404-1016.zip tower-smart-20200404-1020.zip
April 4, 20206 yr Community Expert 44 minutes ago, ladlo said: the seek error rate returned to 100 value vs 67 threshold... Yep, everything looking fine at the moment, you might hold on on the replacement for now, just keep an eye on it, but it it happens again I would replace it.
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