March 21, 20233 yr Hi all, Never had any disk errors before apart from cache had a few but still fine. Never any on my array discs. Not sure if it's related but I upgraded to 6.12.0-rc2 a few days ago. Had some files on my cache so evoked mover and then loads of errors came up on Parity disk 1 and now disk 4. Not sure if it's related to the update. All my array disks are WD Reds. It's just doing a read test now and looks like it's going to take a few hours but have attached logs for both disks now as at first, it was just disk 1. Also attached are the diagnostics logs. Cheers WDC_WD80EZAZ-11TDBA0_7HKA9XBJ-20230321-0231.txt WDC_WD80EZAZ-11TDBA0_7SK7KX7W-20230321-0242.txt tower-diagnostics-20230321-0246.zip Edited March 21, 20233 yr by jazzy192 added disk 4
March 21, 20233 yr Community Expert Looks more like a power/connection problem, check/replace cables, also btrfs is detecting a lot of data corruption, you should run memtest.
March 21, 20233 yr Author 15 minutes ago, JorgeB said: Looks more like a power/connection problem, check/replace cables, also btrfs is detecting a lot of data corruption, you should run memtest. Ok sure. Shall I let the read check finish running or is that pointless?
March 21, 20233 yr Author 10 minutes ago, JorgeB said: Mostly pointless in this case. Thought so, will check everything and get back to you. After checking would it be best to run a read test after or both read and smart? Edited March 21, 20233 yr by jazzy192
March 21, 20233 yr Community Expert SMART looks fine and it's not logged as a disk problem, but it won't hurt to run a SMART test.
March 21, 20233 yr Author 21 minutes ago, JorgeB said: SMART looks fine and it's not logged as a disk problem, but it won't hurt to run a SMART test. Sorry, I haven't been in this situation before. How will I know if it's fixed? Will the errors still be there?
March 21, 20233 yr Community Expert Not sure what you are asking, for the SMART tests, if you want run them do and then check the results, or post new diags, before or after that the disks must be rebuilt: https://wiki.unraid.net/Manual/Storage_Management#Rebuilding_a_drive_onto_itself
March 21, 20233 yr Author 28 minutes ago, JorgeB said: Not sure what you are asking, for the SMART tests, if you want run them do and then check the results, or post new diags, before or after that the disks must be rebuilt: https://wiki.unraid.net/Manual/Storage_Management#Rebuilding_a_drive_onto_itself I just didn't know what the steps were to do after checking the cable etc and after memtest, like how do I find out if it's okay or not? There were some CRC error errors on one of my cache drives that started about a year ago. Nothing changed so carried on as normal (probably not a wise move). It's only now that problems happened. I doubt this would have caused it but. deleted a couple of files (ISO's) off the cache before pressing mover last night when the error occurred. Edited March 21, 20233 yr by jazzy192
March 21, 20233 yr Community Expert 10 minutes ago, jazzy192 said: I just didn't know what the steps were to do after checking the cable etc and after memtest, like how do I find out if it's okay or not? If memtest finds errors there's a RAM problem, if it doesn't there could still be issues, but not much more you can do other than replacing the RAM or trying again.
March 21, 20233 yr Author Ok, well soon as I'm back in an hour or so I will check that then and leave it running a good while. I've not touched the server or anything. It's been in its rack happy as Larry so I thought.
March 21, 20233 yr Author 11 hours ago, JorgeB said: If memtest finds errors there's a RAM problem, if it doesn't there could still be issues, but not much more you can do other than replacing the RAM or trying again. I checked it over and reseated the RAM, checked the cables etc and nothing looked out of place. It's been running for about 7 hours now after using the UEFI version without any errors. Shall I keep it going overnight or boot it into Unraid now and see the logs?
March 22, 20233 yr Community Expert Boot Unraid, run a correcting scrub on the pool and post the results.
March 22, 20233 yr Author 4 hours ago, JorgeB said: Boot Unraid, run a correcting scrub on the pool and post the results. Hey, I ended up leaving it running till this morning and no errors. It's just running Scrub now on the Cache Pool and picked up some errors already: UUID: 7de0f47c-9d8a-4d24-b8c2-aab8c2c616f9 Scrub started: Wed Mar 22 13:22:48 2023 Status: running Duration: 0:01:50 Time left: 0:03:48 ETA: Wed Mar 22 13:28:26 2023 Total to scrub: 347.74GiB Bytes scrubbed: 112.94GiB (32.48%) Rate: 1.03GiB/s Error summary: csum=6 Corrected: 0 Uncorrectable: 6 Unverified: 0
March 22, 20233 yr Community Expert Check the syslog once it's finished, corrupt files will be listed there, those need to be deleted/restored from a backup, then run a new scrub to confirm zero errors.
March 22, 20233 yr Author 16 minutes ago, JorgeB said: Check the syslog once it's finished, corrupt files will be listed there, those need to be deleted/restored from a backup, then run a new scrub to confirm zero errors. Attached are the logs, going to have a read through myself also. Yes, there is nothing on the cache I want to keep I dont think, docker, appdata etc are all on a separate SSDs or M.2. tower-diagnostics-20230322-1416.zip
March 22, 20233 yr Author Right, all done now and deleted and have run scrub with no errors. Next up is the Parity disc right? Rebuild which first? The Parity or the Array Disk? UUID: 7de0f47c-9d8a-4d24-b8c2-aab8c2c616f9 Scrub started: Wed Mar 22 14:32:01 2023 Status: finished Duration: 0:00:19 Total to scrub: 2.00GiB Rate: 1.06GiB/s Error summary: no errors found Edited March 22, 20233 yr by jazzy192
March 22, 20233 yr Community Expert You can rebuild both at the same time: https://wiki.unraid.net/Manual/Storage_Management#Rebuilding_a_drive_onto_itself For the pool see here on how to reset the errors and to better monitoring the pool, if new errors appear there's still a problem.
March 22, 20233 yr Author 11 minutes ago, JorgeB said: You can rebuild both at the same time: https://wiki.unraid.net/Manual/Storage_Management#Rebuilding_a_drive_onto_itself For the pool see here on how to reset the errors and to better monitoring the pool, if new errors appear there's still a problem. Cheers, I was just finishing that when noticed my array discs have moved around. Is that normal? I cannot put the same disk back in Parity one as the only one unassigned after assigning the other back is already in the array compared to my last screenshot?!
March 22, 20233 yr Author 10 minutes ago, JorgeB said: Not sure I follow, post a new screenshot of main. This is two days ago and just now attached.
March 22, 20233 yr Community Expert They wouldn't swap on their own, but for this case it doesn't matter.
March 22, 20233 yr Author 4 minutes ago, JorgeB said: They wouldn't swap on their own, but for this case it doesn't matter. I didn't swap them and no one else apart from my partner has access?
March 22, 20233 yr Community Expert Don't see how, but post new diags, in the last ones they were still assigned as the first screenshot.
March 22, 20233 yr Author 11 minutes ago, JorgeB said: Don't see how, but post new diags, in the last ones they were still assigned as the first screenshot. Honesty Jorge, I have no reason to mix them up! It Paused rebuilding to do a read check, shall I let that complete or rebuild firsT?
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