October 7, 20223 yr Hey there, I am at wits' end with this issue. I have tried 3 different HBA cards (with the original working fine for over 5 years). I have 8x 8TB drives and a 12TB parity drive which was working fine until about 1 month ago, the drives would suddenly drop off and I would have to restart unraid for them to appear again. Nothing has changed on the hardware side (except to try different HBA cards). I have put the HBA cards in different slots to no avail - same issue. I have attached the log from today. I have connected the 12TB parity to an onboard SATA - this appears to have no issues. CPU: AMD Ryzen 7 3700X 8-Core @ 3600 MHz Mobo: B450M MORTAR MAX (MS-7B89) Version: 6.11.1 Any help would be appreciated. Thank you, Levi syslog.txt tower-diagnostics-20221008-0902.zip Edited October 7, 20223 yr by levijay
October 8, 20223 yr Community Expert Oct 7 14:39:13 TOWER kernel: mpt2sas_cm0: SAS host is non-operational !!!! If using a different HBA didn't help it suggests to me that the board is the problem.
October 19, 20223 yr Author Solution On 10/8/2022 at 8:02 PM, JorgeB said: Oct 7 14:39:13 TOWER kernel: mpt2sas_cm0: SAS host is non-operational !!!! If using a different HBA didn't help it suggests to me that the board is the problem. after process of elimination, it was the PSU! Thanks for your assistance
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