I've been digging through the compatibility matrices at e.g.
http://www-01.ibm.com/support/docview.wss?rs=663&context=SSGSG7&uid=swg21053218&loc=en_US&cs=utf-8&lang=en which I'll parenthetically note were reasonably straightforward to find, and reasonably simple to parse. Nice. But I didn't see a specific mention of virtual volumes. I ass-u-me that it's similar to the library manager situation: i.e. a 6.2 server target can interact with sources down to 5.5; but I don't seem to see specific confirmation of that. Anyone have feedback on that? - Allen S. Rout - Finally planning The Move.