After upgrading to Version 6.91 today, my drive 2 in the array came back as unmountable, so I stopped the array changed to no disk and rebooted, then put the drive back and rebooted and the disk was then mounted and started to do a parity rebuild. Shortly after the rebuild started transfer speed slowed down to almost kbs. Looking in the logs it shows ata15.00 errors constantly. How do I tell what ata15 is? Is it the disk 2 that failed?  I have since paused the rebuild until I can figure out what to do to get this issue resolved. Any help would be grateful.

Thanks

Randy

 

ultimate-diagnostics-20210331-1708.zip

Rebuild is not the way to fix unmountable, but since it is mounting now should be OK. Probably it was temporarily unmountable due to the connection issues.

 

Check connections, power and SATA, both ends, including splitters. Try again.

Just to complete the fix, I shutdown the server and unplugged all the sata cables, plugged them back in and powered up. No problems after that. It seems that every month when the parity check starts I have to wiggle the connectors to get the speed back up again, but this time I had to actually shut down and unplug them to fix the connections.

 

Thank for your help.

I didn't realize that there was a way to fix an un-mountable drive in the array, I will inquire the next time it happens, if it does.