Patb Posted April 2, 2019 Share Posted April 2, 2019 I recently purchased an IBM X3630 M4 with 14 drive bays and I'm trying out Unraid for the first time. I tried different drives (some old, some recently shucked) in different slots I'm getting a ridiculous number of CRC errors. I ended up rebooting when I hit over 200,000 on one of the drives. I tried to search the forums but didn't find anything on point. Any assistance would be greatly appreciated. Thanks Patrick tower-diagnostics-20190402-0001.zip Link to comment
JorgeB Posted April 2, 2019 Share Posted April 2, 2019 CRC errors are a connection problem, most times the SATA cable, but it can be also backplane, controller, you'll need to try swapping things around to rule out the problem. Link to comment
Patb Posted April 2, 2019 Author Share Posted April 2, 2019 Thanks. I'm going to start by reseating the cards and the SAS cables and see if that has an impact. Link to comment
Vr2Io Posted April 3, 2019 Share Posted April 3, 2019 Does only those two 8TB suffer CRC error ? All other disk connect to same expander blackplane ? If all yes, seems it is blackplane issue. Link to comment
Patb Posted April 3, 2019 Author Share Posted April 3, 2019 It seems to be all disks at different rate. I guess I'll have to find a replacement backplane Link to comment
Vr2Io Posted April 3, 2019 Share Posted April 3, 2019 Check IBM support page have some firmware update for the blackplane, but this have risk. If you plan found another one, then you may have try. Link to comment
Patb Posted April 3, 2019 Author Share Posted April 3, 2019 ordered a replacement backplane on ebayu. I'm also going to try a different controller once I flash a m1015 I have lying around to IT mode. Link to comment
Patb Posted April 11, 2019 Author Share Posted April 11, 2019 It took some work to get the firmware update working correctly but finally got it. I flashed the backplane but still getting errors. I'm now waiting to receive a replacement backplane from Ebay and some SAS cables... The CRC error count on one of my hard drives is now up to over 6,000,000 as a result :( As a result of the time I'm spending on this I have a question on the trial key... is it tied to the particular USB key or does it fingerprint the system? I'm wondering because at this rate I won't have been able to actually test anything before it runs out. I know that I'll be able to request an extension but I may burn through that as well if I don't identify the issue soon. Link to comment
JorgeB Posted April 11, 2019 Share Posted April 11, 2019 You can always start another trial with a different flash drive, but will need to start over, i.e., can't copy current Unraid config. Link to comment
Patb Posted April 11, 2019 Author Share Posted April 11, 2019 Thanks, I was wondering about that. I'm not lacking in USB keys. I'm ok to start over since I didn't really get it off the ground yet. Link to comment
Patb Posted April 19, 2019 Author Share Posted April 19, 2019 So the problem ended up being with the HBA controller... after replacing the backplane and the SAS cables I tried installing an M1015 flashed to IT mode and that seems to have put an end to the CRC errors for now. I'm preclearing the drives and the SSD has cleared without error and not seeing the CRC error count creeping up anymore. This is a relief. Thanks for the assistance. I will finally be able to start to test Unraid on this server Link to comment
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