July 18, 20232 yr Hello, all. I followed the "Replacing a Data Drive" procedure to replace a non-parity 4TB disk with a 10TB disk (parity is also 10TB). Stopped array, unassigned 4TB, shutdown and swapped disks, turn on, assign new 10TB to 4TB's previous slot, start array, rebuild commenced. Around 7 hours into the rebuild, Disk 11 (which is the new disk I just inserted) gets disabled due to errors: "Disk 11 is in error state" and "Reallocated sector ct is 7". The rebuild process is currently paused at 2.88TB of 10TB and reports "Read-Check in progress." There are "Cancel" and "Resume" buttons on the read check. There was only 2.54TB of data on the replaced 4TB disk, so the rebuild is "past the point" of the previous drive's data; I don't know if that's relevant. I still have the 4TB disk I removed. Should I cancel or resume the read check, and what effect will that have on the drive rebuild/parity sync operation? I actually have another spare 10TB I could in at some point, but I don't want to jeopardize the rest of the disks in the meantime. Attempting to run a SMART test on the disabled disk appears to not work at this point. I can replace the SATA cable as well, but still want to know how to handle the current rebuild/Read-check in progress operation. Thanks for any guidance. disk 11 log.txt hyperion-diagnostics-20230718-0728.zip Edited July 18, 20232 yr by jbrubaker
July 18, 20232 yr Community Expert Cancel the read-check, you logs are being spammed with PCIe errors, see if this helps: https://forums.unraid.net/topic/118286-nvme-drives-throwing-errors-filling-logs-instantly-how-to-resolve/?do=findComment&comment=1165009 Then post new diags after array start.
July 18, 20232 yr Author Canceled the read check, added the referenced PCIe exemption to the config, rebooted. Disk 11 still reporting disabled with contents emulated. Now reallocated sector count is reading 440, where it said 7 before reboot. The logging exemption doesn't seem to have helped with the PCIe log spam, but here's the diagnostics after the reboot and the array coming up. hyperion-diagnostics-20230718-1214.zip
July 18, 20232 yr Community Expert If you have a new disk replace it, that's a lot of reallocated sectors for a new disk, emulated disk is mounting so just assign a new disk and rebuild. For the PCIe errors try this one instead, it should at least suppress them: https://forums.unraid.net/topic/111161-pcie-errors/?do=findComment&comment=1013378
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