VSS can be used with most any Windows backup application to safely quiesce NTFS and any applications (like Exchange for example) that are tied into VSS. Replication Manager performs a similar function.  If you want to do manual VSS snaps, you would use either diskshadow or vssadmin (depending on your version of Windows). With that tool, you can create consistent hardware snapshots (array based snapshots). Diskshadow is the easier of the two to use in my opinion and is available on Win2k8. Diskshadow also lets you easily group multiple devices and snap them consistently.  To restore, you can promote the snapshot from Unisphere to a new device and copy the files you wish to restore. Alternatively, you can issue a restore operation from Unisphere to roll back the whole device to a previous point in time.
Hellow How to enable VSS with ISCSI and  MPIO enable .  i have installed  VSS Windows software download from EMC.   What is a process to performe VSS solution ? i have Snapshot licence Do i need to enable Microsoft Vss ? what can i do to restore a file delete from windows .  thanks
How to use Vss