[ovirt-users] Live migration of VM(0 downtime) while Hypervisor goes down in ovirt

[Christopher Cox]

On 02/09/2018 01:25 PM, ranjithspr13 at yahoo.com wrote:
> Hi,
> Anyone can suggest how to setup VM Live migration (without restart vm) 
> while Hypervisor goes down in ovirt?
> Using glusterfs is it possible? Then how?

Can't speak for glusterfs specifically, but this is how things work.

All nodes know about the storage domains... this is so a different node 
can "take over" in a live migration.  Not necessarily designed for a 
node to go down hard (but let's say the node has problems communicating, 
it might get fenced and live migration begins, and of course, the usual 
maintenance mode would force a live migration).... for hard down 
scenarios you might want to look a HA for the VMs.