In VxVM CD, there are two scripts (upgrade_start and upgrade_finish) which you can use it for your migration.
take a look at these links,
How to upgrade VERITAS Volume Manager (VxVM) and Solaris from an older version of Solaris and SUNWvxvm
http://seer.support.veritas.com/docs/230184.htm
Using Solaris Live Upgrade Software and Upgrading VERITAS Volume Manager
http://www.sun.com/bigadmin/content/submitted/live_upgrade_veritas.html
Anyway, you in the wrong forum. Post your question in Volume Manager forum, might get more respond.
http://forums.veritas.com/discussions/forum.jspa?forumID=86
cheers!!!
patrick :)
