ZFS Disk Errors

[newton]

I'm getting an error on one of my ZFS RAID-Z disks:

(ada1:ahcich1:0:0:0): WRITE_FPDMA_QUEUED. ACB:   61 56 5e 9e ab 40 1e 00 00 00 00 00
(ada1:ahcich1:0:0:0): CAM Status: Uncorrectable parity/CRC error
(ada1:ahcich1:0:0:0): Retrying command

I just replaced ada1, and it's currently resilvering. I'm starting to get the same error. Is there a way I can determine the problem prior to replacing more parts? I'm thinking of trying the cable, the PSU and then the motherboard.

Edit: I didn't see anything that screamed broken in smart status, although there were several higher instances of different measurements (as compared to a few other disks in the array). zpool status returned no errors.

 

[Savagedlight]

I'd try a different cable, then a different SATA port if possible.

 

[junovitch@]

The cable or port are the likely culprits. I've had a similar experience on my desktop. One of the SATA ports will cause checksum errors on any disk plugged into it and went away when plugged into another.