November 23, 20178 yr Opened up web gui this morning to this It looks like an I/O communications problem but posting my diagnostic zip for advise from others more knowledgeable than I before I shut down. My thinking would be to stop array, un assign disk 1, start array, stop array and re assign disk 1 and let rebuild start. Then do the same for the parity drive. Or??? tower-diagnostics-20171123-0634.zip
November 23, 20178 yr Community Expert Looks more like a connection issue, both disks dropped at the same time, but disk1 dropped offline so there's no SMART report, you should reboot, take the opportunity to check connections, especially if both disks share the same mini SAS cable, then check SMART for disk1 and if all looks good rebuild, you can re-sync parity1 at the same time, no point in doing it only after the rebuild.
November 23, 20178 yr Author 5 minutes ago, johnnie.black said: Looks more like a connection issue, both disks dropped at the same time, but disk1 dropped offline so there's no SMART report, you should reboot, take the opportunity to check connections, especially if both disks share the same mini SAS cable, then check SMART for disk1 and if all looks good rebuild, you can re-sync parity1 at the same time, no point in doing it only after the rebuild. I checked cables all are good. Disks are on different cables. Got a smart report for disk 1. Have unreported errors.. Could this be from dropping off the array? tower-smart-20171123-0808.zip
November 23, 20178 yr Community Expert It also has pending sectors, so that disk looks bad, strange it took parity down with it. Run an extended SMART test on disk1, if it fails, and it should, replace it.
November 23, 20178 yr Author On 11/23/2017 at 8:28 AM, johnnie.black said: It also has pending sectors, so that disk looks bad, strange it took parity down with it. Run an extended SMART test on disk1, if it fails, and it should, replace it. Tried running extended smart test but gets interrupted by host reset. I have an extra open slot on another 5x3 cage that I will swap that drive into and try extended test again. 11/24/2017 Update on this: The one data drive is indeed toast. Replaced with a new 8tb drive and am running a parity sync/Data-rebuild now. Edited November 24, 20178 yr by Harro added update
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