I want to format the drives on an 8 TB My Book Duo for OSX. And I want to use the device in RAID 1 mode.
The instructions in Answer ID 3865 pertain to formatting a single disk. In Disk Utility the device shows up as a single 8 TB disk. I’m uncertain how to apply these instructions in this situation. It’s my understanding that the device comes set for RAID 0. When and how do I switch to RAID 1? I take it the two drives need to be partitioned and formatted identically for RAID 1. How do I that?