Acps Posted February 17, 2023 Share Posted February 17, 2023 I have been having issues with moving large amounts of data from my cache drives to the array for the last several months. Started shortly after doubling my ram from 2 to 4 sticks. Today I thought I would remove 2 ram sticks to see if the disk errors would clear up. However I clearly botched what I thought was a simple task into a possible data loss incident? 🤕 I'll attach my logs and hope someone could take a look and help me try and dig myself out of this pickle im in now. Ty in advance ~Acps unraid-diagnostics-20230217-1149.zip Quote Link to comment
Squid Posted February 17, 2023 Share Posted February 17, 2023 Your disk 4 I'd say is shot 197 Current_Pending_Sector -O--C- 001 001 000 - 28288 Also, what I'm assuming to be parity 2 ST8000DM004-2CX188_ZCT2X75X-20230217-1149 probably had it's SATA connection disturbed when you played with the RAM. Reseat both ends (and power) Quote Link to comment
Acps Posted February 17, 2023 Author Share Posted February 17, 2023 How do I stop the data-rebuild. The menu buttons are not responding. Will Parity 2 need to be rebuilt too, aka unassigned and reassigned too? Also do I want to leave disk 4 disabled for now or just unassign the bad drive until I order a replacement? -AcpsSent from my iPhone using Tapatalk Quote Link to comment
JorgeB Posted February 17, 2023 Share Posted February 17, 2023 Parity2 dropped offline but the rebuild appears to still be going, slowly, post new diags to see if it advanced since the last ones. Quote Link to comment
Acps Posted February 17, 2023 Author Share Posted February 17, 2023 The gui was acting like the array was read/writing at 160Mbs, however it never moved passed 0% at 1.97gb after 2 hours. I wasnt able to pause or cancel the rebuild, however I was able to do a powerdown -r, to get the system rebooted and powered down. Server is off site and I plan on grabbing it after work today to work on it this weekend. Snagged the diag after reboot. I also should have nearly 99% of all my syslogs going back atleast to 2021. Any input and how to go recover parity2 while i replaced disk 4 so i dont botch it 😁 unraid-diagnostics-20230217-1323.zip Quote Link to comment
JorgeB Posted February 17, 2023 Share Posted February 17, 2023 Check/replace cables on parity2 then unassign it, start array, stop array, re-assign it, start array, it can be synced at the same time disk4 is rebuilt. Quote Link to comment
Acps Posted February 17, 2023 Author Share Posted February 17, 2023 I likely won't have a replacement for disk 4 for several days. Can I reassign Parity2 and leave disk 4 unassigned to rebuild that disk? Or do both disks need to be assigned together?I've been wanting to replace my 4-5tb drives with 8tb cmr, likely ST8000VNZ04. -AcpsSent from my iPhone using Tapatalk Quote Link to comment
trurl Posted February 17, 2023 Share Posted February 17, 2023 Since you have dual parity, you can rebuild 2 drives at the same time, or you can just rebuild 1 disk now and rebuild 1 disk later. That applies whether the 2 disks are parity or data or both. 1 Quote Link to comment
Acps Posted February 21, 2023 Author Share Posted February 21, 2023 Over the weekend I was able to successfully unassign disk4 and rebuild pairty2. Ran another extended smart test on disk 4 and it completed with read failure again. My replacement drive should be arriving this week. I ran a parity check after my parity rebuild, which also completed with 0 errors. But now parity 2 is disabled again after having many read errors. I have most dockers turned off right now, save Plex. Attached my diags and will run an extended smart test on parity2 overnight, is it likely I have another disk going bad? Parity2 is only 2 years old, while disk 4 is 8 years. Appreciate any help! Ty in advance ~Acps unraid-diagnostics-20230221-1827.zip Quote Link to comment
JorgeB Posted February 22, 2023 Share Posted February 22, 2023 It's not logged as disk problem and SMART looks OK, so possibly a power/connection issue, also worth updating the LSI firmware to latest. Quote Link to comment
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