While not a direct answer to your question, I would like to point out that SnapCenter 2.0 now has the capability to backup, clone, and restore Windows LUNs through the SnapCenter interface.
This will list all Windows LUNs across all hosts managed by SnapCenter and will allow you to back them up individually or as groups.
SnapCenter is policy based, so you can create one or more policies on how you want the backup to occur, including the desired retention.
It also enables SnapMirror and SnapVault updates
Hope this helps,
John