[CentOS] Virtualization

Wed Jun 17 16:44:47 UTC 2015
Gordon Messmer <gordon.messmer at gmail.com>

On 06/17/2015 03:32 AM, Robert Heller wrote:
> If host is using LVM for disk partitioning and uses logical volumes for VM
> disks, it is possible to do LVM 'snapshots' and these snapshots can then be
> backed up, all without shutting down the VMs.

Note that making an LVM snapshot, alone, will not provide a consistent 
image for a backup.  If you want to back up a snapshot of a running 
system, you should use "virsh snapshot-create" to capture the complete 
state of the system.


Backups from within the guest will typically be much smaller.  I'm 
working on a flexible snapshot script that supports multiple storage types.