torch2k Posted February 19, 2020 Share Posted February 19, 2020 Since last night I started to have a disk show some read errors. At first I tried to migrate files away from that disk using Unbalance, but that failed / froze. I don't even recall everything I tried at this point, but basically everything I tried, failed. Errors. This morning I have two disabled drives and one drive that was stuck in the middle of a parity rebuild. Even though I have dual parity, I think i'm in a worst-case scenario right now with data loss. On the most recent reboot, I can't even seem to get Unraid to respond normally - it's sluggish. Am I having a string of old drives failing all at once? or is this something bigger, like my SAS card failing? I don't know what to do. tower-diagnostics-20200219-0904.zip Quote Link to comment
JorgeB Posted February 19, 2020 Share Posted February 19, 2020 Can't see what happened to disk13 since it was pre-reboot, but at the moment there are errors on 3 disks at the same time, this suggests more a cable/power issue, do disks 8, 14 and currently unassigned ST2000NM0001_A2_Z1P16K7F0000C229EX7U_35000c50040fbab3b share something in common, like a miniSAS cables, power splitter, etc? Quote Link to comment
torch2k Posted February 19, 2020 Author Share Posted February 19, 2020 Yup, same power and same sas cable. Quote Link to comment
torch2k Posted February 19, 2020 Author Share Posted February 19, 2020 I took the power cable apart since I made it. All of my ends seem to be fine, but the wires on the feeding end practically fell out when I removed the cap. (From factory) Quote Link to comment
JorgeB Posted February 19, 2020 Share Posted February 19, 2020 SATA splitter should be used for max 2 drives, more than that can easily go over the max 12v rating for a SATA plug, 4.5 Amps. Quote Link to comment
torch2k Posted February 19, 2020 Author Share Posted February 19, 2020 Ok -- I believe you. Now that I've fixed that power cable, I've rebooted. My problem is that I don't remember which disks were in slot 8 and 20. And no matter what disk I slide into that slot, it's marked blue, meaning it will wipe it and insert it as a new disk, right? If that's correct, I think I need to do the following: - generate a new config with those two slots removed - let parity run - when parity is complete, mount the two problem disks with UD and attempt to copy the files back to the array Can you confirm that's a good course of action, or show me the right way? Quote Link to comment
JorgeB Posted February 19, 2020 Share Posted February 19, 2020 If the dropped disks are OK, and you can run a long SMART test to be sure, you can do a new config with those disks also assigned, to any slot, then just re-sync parity. Quote Link to comment
torch2k Posted February 19, 2020 Author Share Posted February 19, 2020 Thank you. To properly correct my hardware issues (too many drives on not enough cables), what do I need to do? Should I be getting my hands on a 4U / 24-bay SAS enclosure instead of my Rosewill L4500 + EVGA PSU? Quote Link to comment
JorgeB Posted February 19, 2020 Share Posted February 19, 2020 You can try and get extra SATA cables if it's a modular PSU, or just get a new one with enough cables, a new chassis is also an option, budget allowing. Quote Link to comment
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