Hello there,
Could someone help to try to find out what is the problem of the parity disk error?
The situation is I have 4 drives, all the same model HGST Ultrastar HC320 8TB
1 is parity drive.
3 drives in the array work just fine, no error.
The parity drive threw out blk_update_request I/O error randomly. Sometimes it works fine until the schedule parity check, sometime it just threw out blk_update_request I/O error randomly and I need to remove it from the parity drive list. But when I run the smart shot / long test, no error found, preclear disk a dozen times without error.
I have tried to change the SATA cable, SATA power cable, SATA port with no luck, so I assume there might be some problems of the drive anyway. So I bought another one, preclear the new drive without error. Then the same blk_update_request I/O error happens again when I change the new drive as the parity drive.
I really have no idea what is wrong / what to do next.
Any help is appreciated.
tower-diagnostics-20220629-1947.zip