You could look into Commvault snap protect , we use that againt our 3PARs for backup of VMware.
The way it works is :
* First it makes Vcenter snapshot all VM on a LUN
* Snapshot is taken on the 3PAR
* Snapshots on active LUN is deleted inside Vcenter
* Snapshot on the 3PAR is exported to a ESXi Host ( For backup checking )
* Snapshots on the 3PAR is also exported to a Commvault Media agent
* Backup data is copy off the 3PAR snapshot into the backup system
You will then get container backup so you can restore a full VM or single files depending on what you need.
And also your offloading your production servers since you don't need to drag backup data directly from the ESXi Hosts.
http://www.scribd.com/doc/106468915/48/ ... -3PAR-Snap