I may be coprrected here, but I’ve not heard of a NTFS formatted RAID-1 on a MBLD (I have one of these) and the MBLD does not have a USB3 port. Only USB2.
Also, the operating system actually resides on the drives? If you replace both drives at the same time I don’t beleive the MBLD will will start if the operating system partition is not present. you’ll need to follow a debricking procedure documented on this forum.
http://community.wd.com/t5/My-Book-Live-Duo/GUIDE-Debrick-a-MyBookLive-DUO/td-p/544860
I believe the RAID-1 is formatted ext-4 within the MBLD. I guess it is possible to retrieve data. I’m sure you’ll find a guide somewhere in this forum on how to do this.
