These are verified Dell drives, all exactly the same and all from the same vendor. Some are working, but some are not. The drives that are not working show as "not approved". I've had this issue before, and it was solved by initializing the array, but that's not working this time.
Is the firmware on the controller tied to the firmware on the drives? I have one array running 9.1.2 and another on 8.0.4.