[Users] Upgrading ovirt-engine from Centos dre repo

[Neil]

On Tue, Jul 31, 2012 at 1:04 PM, Itamar Heim <iheim at redhat.com> wrote:

> you need to run the upgrade script since the setup locks the rpm's to make
> sure the code isn't updated without updating the db in sync

Thanks Itamar,

I see after running engine-check-update I get..

12 Updates available:
 * ovirt-engine-3.1.0-3.15.el6.noarch
 * ovirt-engine-backend-3.1.0-3.15.el6.noarch
 * ovirt-engine-config-3.1.0-3.15.el6.noarch
 * ovirt-engine-dbscripts-3.1.0-3.15.el6.noarch
 * ovirt-engine-genericapi-3.1.0-3.15.el6.noarch
 * ovirt-engine-notification-service-3.1.0-3.15.el6.noarch
 * ovirt-engine-restapi-3.1.0-3.15.el6.noarch
 * ovirt-engine-setup-3.1.0-3.15.el6.noarch
 * ovirt-engine-tools-common-3.1.0-3.15.el6.noarch
 * ovirt-engine-userportal-3.1.0-3.15.el6.noarch
 * ovirt-engine-webadmin-portal-3.1.0-3.15.el6.noarch
 * vdsm-bootstrap-4.10.0-0.191.9.el6.noarch

Can this update be done on a live system with multiple hosts running?
I'm currently running the engine on one of the nodes, which I know
isn't ideal.
I've searched a bit regarding the upgrade procedures from 3.1 to 3.1,
does the DB need backing up, are there any wiki pages on the correct
steps?

Thanks very much.

Regards.

Neil Wilson.