I previously posted about a large number of drive erros on error parity check. I diagnosed this as being the cheaap PCIe sata expander I had. I then went and bought an LSI 9211-81 in IT mode and saw a tremendous increase in spead and a complete disappearance in errors.

 

However, I have started having pretty major issues again. I had Disk 1 and Disk 3 die on me. After replugging all the cables I managed to get Disk 3 back up and running and a full rebuild completed fine. Disk 1, however, would instantly error whenever I would start a rebuild. I have been meaning to take this out and RMA it as it is only a couple months old but I have been busy.

 

I thought all my problems were somewhat averted and in having 2 parity drives I would be find handling another failure in the mean time. However, I noticed a couple days ago that Disk 3 has been disabled again. Thinking I could get round to it this weekend I logged on to see the first Parity disk is also spitting errors. Interestingly it hasn't been disabled like the other two have but it has spit nearly 3000 hours.

 

I have attached the diagnostics that has been running for the last couple weeks. Disk 1 is not active in the array but Disk 3 was until a couple days ago and Parity 1 is. What is my best course of action to ensure minimal data corruption and be back up and running? I know some things have already corrupted but none of it is is majorly sensitive stuff.

 

I am running 3x 16TB Ironwolf Pros that are almost exactly 6 months old and 3x 16TB Seagate Exos x18 that are just over a year and a half old. The 2 disk drives have passed all SMART tests I have run.

 

Thanks for any advice and help. It is greately appreciated.

mockingjay-diagnostics-20250518-1253.zip

None of the issues are logged as disk or controller errors, looks more like a power/connection issue.