Move contents of Jess’s 500gig (206gigs in content) drive to my old USB enclosure drive of 250 gigs (233 gigs usable)

Move all my RAID 5 content (553gigs) to Jess’s 500gig drive (452gig usable) and my old 160gig drive (about 140gig usable)

Then I can play with taking the raid set off line, and re-formatting the 4 drives and then copy the data back to the drives. I will deal with AuFS and FlexRAID after.