January 28, 20233 yr Spoiler Hello all, First time poster, and first issue I've come across with Unraid. A couple weeks ago, I hit my first disk read error, and the disk was disabled. I still have not rebooted the server, and to the best of my knowledge, there have not been any writes to the array since this happened. Contents are still being emulated, and I was able to manually copy everything to an external drive. Diagnostics are attached, but I can only sort of make sense of them. I've read some previous post suggesting I can rebuild over the existing drive, but that assumes there are no issues with the drive itself. Perhaps cable issues? Any help on next steps would be appreciated. Spoiler tower-diagnostics-20230128-1552.zip
January 28, 20233 yr Community Expert Solution 11 minutes ago, lucky03 said: A couple weeks ago Why did you wait so long? SMART attributes for disk5 look OK, no self-test runs. Emulated disk5 mounts, you can rebuild the drive to itself. Somewhat safer to rebuild to a spare if you have one since that keeps the original as a backup in case of problems. Check connections, both ends, power and SATA, including splitters. You can run an extended SMART self-test on the disk if you want. Some of your disks are very full. Too many user shares to examine them all, but looks like you have no Minimum Free for many and they are set to Fillup Allocation. Full disks don't perform as well, and filesystem repair needs some free space if that ever becomes necessary. You should set Minimum Free to larger than the largest file you expect to write to the share. I would move some files off disks 1,2 and try to keep 50G or more free on each disk. Why are you still on 6.9.2?
January 28, 20233 yr Author Really appreciate the comments. 1 hour ago, trurl said: Why did you wait so long? Somewhere between laziness, and incredibly business work trip, and me not wanting my wife & kids to complain that they cannot watch tv or movies while I was away. 1 hour ago, trurl said: SMART attributes for disk5 look OK, no self-test runs. Emulated disk5 mounts, you can rebuild the drive to itself. Somewhat safer to rebuild to a spare if you have one since that keeps the original as a backup in case of problems. Check connections, both ends, power and SATA, including splitters. You can run an extended SMART self-test on the disk if you want. Thanks for confirming. For future reference, what should be looking out for, to determine the disk is still ok? Assuming something in the "xxx (sdj).txt file? I have a spare drive on its way, but it's bigger than the parity drive unfortunately. I may rebuild disk5 to itself to start, then shuffle the drives later. 1 hour ago, trurl said: Some of your disks are very full. I know. My Uraid is basically a big media storage server with a bunch of 16TB & 18TB drives. I'm aiming to fix this when my next 20TB drive comes in. 1 hour ago, trurl said: Why are you still on 6.9.2? It's been on my list of things to do for some time. Appreciate the reminder. Thanks again for the feedback! Edited January 28, 20233 yr by lucky03
January 29, 20233 yr Community Expert https://wiki.unraid.net/Manual/Storage_Management#SMART_Monitoring https://en.wikipedia.org/wiki/Self-Monitoring,_Analysis_and_Reporting_Technology#Known_ATA_S.M.A.R.T._attributes
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