You cannot migrate VMs between Datacenters. I think an export domain will be your easiest option but there may be a way to upgrade in-place (ie. upgrade engine while vms are running, then upgrade cluster) but I am not an expert in this area.

On Wed, May 31, 2017 at 4:08 PM, Charles Kozler <ckozleriii@gmail.com> wrote:

I couldnt find a definitive on this so I would like to inquire here

I have gluster on my storage backend exporting the volume from a single node via NFS

I have a DC of 4.0 and I would like to upgrade to 4.1. I would ideally like to take one node out of the cluster and build a 4.1 datacenter. Then live migrate VMs from the 4.0 DC over to the 4.1 DC with zero downtime to the VMs

Is this possible? Or would I be safer to export/import VMs?

Thanks!

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Adam Litke