I have had a drive failure (a WD10EACS) in my 2TB My Book II WD20000C033-000. Since the unit was configured on my Mac as RAID0 and was used for Time Machine, my loss is minimal.
I’d like to replace both the WD10EACS drives with new WD20EARS 2TB drives, hoping that the WD RAID Manager on my Mac can format the My Book as a fresh 4TB RAID0 device. Seems to me that I have a good enclosure, power supply and all the mounting hardware for new drives, so I may as well gain extra capacity.
Has anybody had any experience with this approach - data loss and (now out-of) warranty issues aside.