Just to be sure, the flow is. - Create VM with root disk on a volume/image. - Create another 1TB volume. - Attach the volume to the VM as a second drive using a multi attach approach ( https://docs.openstack.org/cinder/latest/admin/blockstorage-volume-multiatta... )? - Create snapshot of the original VM (with it's root drive + 1 TB volume)? - Create new VM from snapshot. - Instead of a new VM + 1 new root volume + the same 1TB multiattach volume attached, you get a new multiattach volume (new volume ID and everything)? I've never had the pleasure to play around with this, but creating a new VM from a snapshot could mean a new volume too. I'm not sure how snapshot will work with multi volume VMs. On Fri, Sep 24, 2021 at 11:20 AM open infra <openinfradn@gmail.com> wrote:
Hi,
I am planning to spin hundreds of servers with a shared storage. I have created one instance and attached a 1 TB volume (multiattach) and created a snapshot of the instance. But when I spin another server using the snapshot, I noticed that instead of expected shared volume, individual 1 TB size additional (dedicated) volume has been attached to each VM.
Is there a mechanism where I can create multiple instances along with a shared volume attached to the instance instead of attaching later?
Regards, Danishka