We have a Drobo 5C, which indicated (red) a failed drive in bay 5. That drive was replaced with a new larger drive, and the rebuild process was working for many (7?) hours. The unit then got into a restart loop. I checked the other drives and discovered another bad drive (in bay 4). I can clone all but 8-kB of this 8-TB drive.
What I’m wondering about, is cloning this bad WD80EFZX drive to a current WD80EFAX drive, and will the Drobo 5C accept a cloned drive if it’s not exactly the same drive model.