New root volume from snapshot

[Gaspare A Silvestri]

Hello everybody,

is it possible generating a new root volume from a snapshot created by 
the root volume, and then assigning it to the same VM as root disk, 
deleting the old one?

What I'm trying to explain is a way to operate similar to the hypervisor 
snapshot, using the new volume (considered as a backup) as substitute of 
the old volume.

Thanks in advance,

Gaspare