I have to deal with this oVirt 4.2 cluster, 4 nodes.
It seems someone smartly deleted hosted engine vm... how cool... so, all the VMs are still running, but no cluster management anymore :-).
It's a testing environment, no hosted engine backup.
I have no problems reinstalling the cluster... but I'd love to rescue the VMs... so I'm trying to understand what options I do have, so I ask you please if you have some hints, or maybe links to the right documentation.
- ssh to any ovirt cluster node and export the vms with virsh? possible?
- ssh to any ovirt cluster node and live migrate all the vms on one node? so that I can reinstall a new cluster on the freed nodes? Wondering which one is the correct path to do this... btw, virsh only works in readonly in ovirt cluster nodes
- it's a testing environment, so I could shutdown everything, reinstall a new cluster, reconnect the old storage to the new cluster... question is, how to reimport all the vms in the new cluster.
Please any suggestions?
If you don't have any backup of the hosted-engine VM, the best think you could do is deploy hosted-engine from scratch and when you have the new engine manually re-import the previous hosts and the previous datacenter.
I think that you should be able to do it even with running VMs but if you want to be on the safest side I suggest to manually shutdown all the VMs before the migration.
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