[PVE-User] vzdump: backup kvm lvm2 vm. Full backup ok, differential ?

[dea]

Hi all !

I've a big problem.

vzdump after LVM2 snapshot create a "dd" image of KVM container, perfect for
full backup, but is there a solution for differential backup ?

I use an history, use different versions of the same container. This is a huge
waste in terms of (backup) space used.

The solution would be a special "differential dd"....

Thanks

Luca