Honestly, I’d return the drives for a refund and purchase a My Cloud EX2, which is exactly what I ended up doing.
From the few online retailers I checked out (amazon, new egg, etc) I was able able to find those 2 6TB red’s for no cheaper than $500 (for both).
I found a 12TB My Cloud EX2 on amazon for $610 and purchased it. So not only did I get my 12TB of space that I wanted for only $100 more than I was going to originally spend, now I also do not have 2 3TB green’s (from my original MBLD) collecting dust somewhere in my house.
With all of that being said, I guess I’ll just now use my MLBD as a backup for the really important stuff in the event that the My Cloud EX2 should happen to fail down the road.
If you however decide to go the route of upgrading the MBLD, you need to follow the debrick guide to get your MBLD up and running with the new drives.
http://community.wd.com/t5/My-Book-Live-Duo/GUIDE-Debrick-a-MyBookLive-DUO/td-p/544860
Good luck, which ever route you choose.
