RAID Internal and External Hard Disk

[marcel500]

Hey, can I have a raid system with an internal and an external hard disk?

Situation:
- 1 TB Internal Hard Disk (Second Disk inside Mac Mini)
- 1 TB External Hard Disk (USB 2.0)

As asked, can I have a raid system setup which uses both internal and external drives. If yes during setup, will my internal drive being deleted (formated) or will the date remain?

Thanks in advance.

 

[maflynn]

No, I don't think its possible, and even if it were, your internal would need to be reformatted.