CalDigit T3 Thunderbolt 2 - Manual (Page 18)

18 CalDigit
5 Check all of the drives that you would like to include in the RAID set and select “create”.
Drives are numbered from top to bottom (A0 top, A1 middle, A2 bottom).
4 Go back into the “Disk Utility” tab and select “Create New RAID Set”. Select the RAID mode you
would like to create.