[ovirt-users] Network Address Change

Fabian Deutsch fdeutsch at redhat.com
Tue Aug 12 08:04:33 UTC 2014



----- Original Message -----
> Hi All:
> To be honest I do not see any config file in the host node
> /etc/ovirt-node inside, so even I put in the global maintenance mode I
> still don't know how to change the host to the new IP address.

Hey Paul,

if you are using oVirt Node (btw what version are you using?), then there are a couple of files, there is
/etc/default/ovirt

and the well known ifcfg files:
/etc/sysconfig/netwprk-scripts/ifcfg-*

And some other paths which are handled by vdsm.

And vdsm is actually managing the network configuration when a Node is registered, that means, it can be that any changes to the configuration files get overwritten by vdsm again.

Maybe Toni can say something about this.

And I am also not sure if Engine will still recognize a Node, when you change the IP of the Node, without letting the Engine know about that.

Sandro, do you know how you can tell Engine that the IP of a Node changed?

Greetings
fabian

> BR,
> Paul.LKW
> 
> 
> 於 11/8/2014 20:56, Sandro Bonazzola 提到:
> > Il 08/08/2014 19:07, Paul.LKW ha scritto:
> >> Hi All:
> >> I just has a case, I need to change the oVirt host and engine IP address
> >> due to data center decommission I checked in the hosted-engine host there
> >> are
> >> some files I could change ;
> >>
> >> in ovirt-hosted-engine/hosted-engine.conf
> >> ca_subject="O=simple.com, CN=1.2.3.4"
> >> gateway=1.2.3.254
> >>
> >> and of course I need to change the ovirtmgmt interface IP too, I think
> >> just change the above line could do the tick, but where could I change
> >> the
> >> other host IP in the cluster ?
> >> I think I have to be lost all the host as once changed the hosted-engine
> >> host IP as it is in diff. sub net.
> >> Does there any command line tools could do that or someone has such
> >> experience could share?
> > Well, I think you can move the hosts to global maintenance, shutdown the
> > hosted engine vm, move the first host and the vm to the new network.
> > After that you should be able to move the other hosts to the new network.
> > When finished you can exit global maintenance.
> >
> > Never tested such scenario so if any other can provide more info and maybe
> > create a wiki page it would be nice.
> > Not sure about what happen with the certificates if they've been generated
> > using ip address instead of FQDN, probably they won't be valid anymore
> > after the network change.
> >
> >
> >
> >> Best Regards,
> >> Paul.LKW
> >> _______________________________________________
> >> Users mailing list
> >> Users at ovirt.org
> >> http://lists.ovirt.org/mailman/listinfo/users
> >
> 
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