Product: WD My Book Duo 16TB RAID: 1 (Mirrored) Filesystem: APFS (Apple File System)
Problem:
Red Light blinking indicating error. Found status message of “Degraded RAID” by using “WD Drive Utilities” (MacOS). Apperantly on of two drives needs to be replaced (RMA).
But when checking on the drive with “WD Drive Utilities” (MacOS) i says both drive are “Online”.
Question:
How can I check which of the two drives is the one that has failed?
(How do I know which one to send back regarding RMA?)