Hi, wondered if you could help me please. I have just bought a WD My Book Duo and have formatted it for MAC. It says it comes as RAID 0 and I can’t work out how to Set it to RAID 1 so it’s mirrored. I went into Disk Utility into the RAID section but I am a bit lost as to what to do. It says Format MAC OS Extended Journaled and underneath RAID type Mirrored RAID set. When I check on the hard drive capacity though through Get Info it still says 4TB so I am not sure if it is set properly.
Any help would be great thanks