I have a failing drive. A My BooK Pro with black WD 4003FZEX
It works but in MB increments. Attempting to copy any large files (several GB) gives approx timings of hours or days.
Disk Utility reports the drive as healthy. First Aid runs successfully without any damage report.
How can I tell if the problem is the drives, the enclosure or the Raid configuration and software?
WD Drive utilities is only supported to a few OS updates back. It oens in Mac OS Catalina, but doesn’t do anything other than say the drives are there.
Any suggestions?
