If I set up a RAID with SAS drives, how would I go about moving my files to the SAS drives from regular SATA ones? I had read that you can't have SAS drives working in unison with SATA. Is this just referring to the fact that you can't set them up in the same RAID together? Could I have 2 SATA and 2 SAS drives separately on two different RAID configurations? Also, I can't seem to find any info on if Macs have issues with some third party SAS drives. Apple is only selling the one brand, but of course that's no indication of anything.