How can I get data off a My Book Live with Data Volume Failed to Mount Error

[ERmorel]

Hello,

See if the following link helps

Complete drive malfunction in last 24 hours

Hmmm.  I’m more inclined to think maybe it’s a host failure more than a dual drive failure.  If it’s a host failure, then swapping both drives into a new chassis will fix it.  If its a dual drive failure that a reboot doesn’t fix, or if you’re running RAID0 and have had EITHER drive fail, your data is gone.