Ideally, I'm trying to set up a Raid 10. I have 3 hard drives currently that have our digital video files on them. So I got an 8-bay raid tower to basically expand the storage capacity, have a mirror, and have it all appear as one drive. So I bought 3 new identical hard drives.. but my question is.. I want to put the 3 new drives in the RAID tower, and move the contents from the 3 old drives, and after that's done, add those 3 old drives as the mirrors to the 3 new ones. Is this possible? To basically make it a RAID 10, but only starting with the 3 new drives, and adding the other drives later?