Can I update VMs compatibility version without restarting VMs? According to the source code, restarting is required during upgrading to 4.1 only if a VM uses random generator device. If it doesn’t, a restart is not really required.
From: <users-boun...@ovirt.org> on behalf of Tomas Jelinek <tjeli...@redhat.com> Date: Monday, 12 June 2017 at 14:15 To: James <ja...@jloh.co> Cc: users <users@ovirt.org> Subject: Re: [ovirt-users] Migrating oVirt cluster from 4.0 to 4.1 On Mon, Jun 12, 2017 at 12:17 PM, James <ja...@jloh.co<mailto:ja...@jloh.co>> wrote: We recently moved our oVirt cluster from 4.0 to 4.1 and have migrated all the hosts. The datacenter currently has a compatability setting of 4.1 but the cluster is still on 4.0. As cross-cluster migrations has been removed (no option anymore?) we aren't 100% sure how to get the cluster onto 4.1 whilst keeping the VMs online. Do we just change the compatibility version live and it "just works" or do we have to have downtime? yes, you just change the compatibility version. The VMs which are down will be automatically updated and work with the new cluster, the running ones will be marked with a "triangle" icon and will be automatically updated on restart of them. Any info would be great! Regards, James _______________________________________________ Users mailing list Users@ovirt.org<mailto:Users@ovirt.org> http://lists.ovirt.org/mailman/listinfo/users
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