[Users] Migration of VMs from 2 different ovirt-managers

[Itamar Heim]

On 06/06/2013 12:01 PM, Alfred Angelov wrote:
> Hey there,
>
> I would like to start off by saying hi, as this is my first post on the
> mailing list :-)
>
> Here is a little background on my setup:
>
> I currently have 2 ovirt setups:
>
> 1. ovirt-vps is ovirt 3.1 with 3 Hosts and 41 VMs (distributed on those
> 3 Hosts) -- oVirt Engine Version: 3.1.0-2.fc17
> 2. ovirt-hosting is ovirt 3.2.0 with 4 Hosts and 12 VMs (distributed on
> those 4 Hosts) -- oVirt Engine Version: 3.2.0-4.fc18
>
> As I understand ovirt is structured as follows:
>
> Data Center -> Cluster -> Hosts -> VMs
>
> My goal would be to just have one ovirt setup, with two clusters - so to
> speak I would like to create a new cluster under ovirt-hosting, lets
> call it vps. And migrate all the hosts from the ovirt-vps setup to that
> cluster. Now I have done some reading where there was talk of
> cold-importing VMs (aka. stop the VM on a node, export it, then import
> on the new node); but that would require that I: a) create a new node
> and b) have to turn off the VMs.
>
> Is there any way to import the hosts altogether into the new cluster,
> and thus not touching the VMs. Would I require to upgrade ovirt-vps to
> 3.2 (also upgrading all Hosts to 3.2) before doing any migration?
>
> 40 VMs on the ovirt-vps setup use using the same physical network as the
> VMs in ovirt-hosting; but I suppose if I create the same network (for
> the last VM) they would have "identical" network setups.
>

Hi Alfred,

not sure if you got a reply yet.
the 'easy' way of doing this is to export/import the VM and move the 
hosts to the other deployment.

anything else will be hacky at this point, though there is work to make 
this easier/supported in the future.

Thanks,
    Itamar