[pve-devel] snapshot improvements

[Dietmar Maurer]

> I also tried todo backups with snapshots but this doesn't seem to work:
> 
> INFO: starting new backup job: vzdump 100 --remove 0 --mode snapshot --
> compress lzo --storage backuplocal --node serv121
> INFO: Starting Backup of VM 100 (qemu)
> INFO: status = running
> ERROR: Backup of VM 100 failed - no such volume 'Stor1:vm-100-disk-1'
> INFO: Backup job finished with errors
> TASK ERROR: job errors

Yes, I need to implement that first.

The idea is that we do not backup any snapshot data. The vzdump would only include
the data of from the running instance. I guess that is OK?