FWIW - I've had problems with the WD RED 3TB Drives. While it wasn't in a Meridian Product it was in a RAID Enclosure.
The drives would unmount and remounting would be problematic.

I've also had problem with the drives (3 of them) in a stand alone bay trying to use the drives as back ups.

Control:15, TwinStores (2) w/Seagate ST33000651AS 3TB Drives, SourceOne, Drobo D5 Storage,
Messenger Preamp, Ayon Skylla II DAC, Gamut D200 MKIII Amps,
Dali Euphonia MS-5, CS-4, AS-2, RS-3 Speakers.