[Users] iSCSI and snapshots

[Maor Lipchuk]

Hi Juan,
Snapshot saves the VM at a particular state in time using qcow (Creates
a new volume and only write the changes from that particular time).
Export domain also saves the VM data but it using copy process of the
volumes, there for, snapshot is more faster process but dependent on the
VM disks.

In a nutshell the difference between the both are, that snapshot is more
related to the VM scope and can be executed while the VM is running
(From Ovirt 3.1)
Export domain is a different domain, there for, can be moved through
setups and DC's.

The info of disks and ram should be displayed in the right pannel for
the VM snapshots, although, for now, marking the active snapshot will
not present this info.
Was that the case you encountered?

Regards,
Maor

On 05/31/2013 07:55 PM, Juan Pablo Lorier wrote:
> Hi,
> 
> I'm trying to understand how ovirt manages snapshots to start using them
> for vm backups. I have my vms to use a iscsi LUN for the system (each
> has its own) and I have no extra space to create an LVM snapshot in the
> VM disk.
> When I hit "create" in the vm snapshot tab, it creates the snapshot and
> reports ok, but I see no info in the right pannel (disk, ram,etc) and
> nothing is created in the data storage of the DC, so I don't get where
> is ovirt storing the snapshot data.
> Do I have to create an export storage domain?.
> Regards,
> 
> Juan Pablo
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