well. current version of kvm on centos does not allow live backups without
downtime to guest.
it's only possible with newer version of kvm and related qemu tools.. so
sad..
--
Eero
2015-06-17 19:44 GMT+03:00 Gordon Messmer <gordon.messmer@xxxxxxxxx>:
> 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.
>
>
> http://searchservervirtualization.techtarget.com/tip/Getting-a-clear-picture-on-KVM-snapshot-basics
>
> Backups from within the guest will typically be much smaller. I'm working
> on a flexible snapshot script that supports multiple storage types.
>
> https://bitbucket.org/gordonmessmer/dragonsdawn-snapshot
>
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