I currently have a software created concatenated disk set housed in a five disk external enclosure. I'm considering upgrading to lion, changing controller cards, and cloning my disk set. Before I do any of these things I want to be sure that they won't destroy my data. I'd like to swap my current card, a Silicon Image Sil3132R5 card, with a Newertech MAXPower eSATA RAID card. If I swap controller cards will this effect my disk set in any way? Can I upgrade to lion or do a clean lion install and maintain my disk set? Finally I'd like to clone my disk set and move the cloned disk set to another Mac Pro. Will the second Mac Pro be able to recognize the disk set?