[one-users] OpenNebula server migration

[Tino Vazquez]

Hi Rubén,

This is completely doable. Just copying the DB won't be enough, you need to
replicate the whole var directory (also, the etc would be good otherwise the
configuration would need to be done again).

Bear in mind that the password less ssh access to the nodes needs to be
setup from the new OpenNebula server as well, same goes for shared storage
if used.

OpenNebula will be able to keep managing the VMs from the new server,
retrieving the information from the DB. I don't foresee any issue with the
different IPs.

Let us know if you bump into any problem with this.

Regards,

-Tino

--
Constantino Vázquez Blanco | dsa-research.org/tinova
Virtualization Technology Engineer / Researcher
OpenNebula Toolkit | opennebula.org


On Wed, Jul 14, 2010 at 1:13 PM, Ruben Diez <rdiez at cesga.es> wrote:

> Hi:
>
> I hope some one an help with this issue:
>
> Currently, we have a OpenNebula (ssh flavour) server running with some
> nodes associate to it. There are several VM running in this structures, too.
>
> But now we need to replace all our physical machines. There are no problem
> about this for the nodes: we can replace first the not used ones, then
> migrate the VMs from the old physical nodes to the news ones, and them
> replace the rest of physical nodes....
>
> But, How can we do with the OpenNebula server?
>
> We can install other new OpenNebula server in one of the news machines
> (with other ip), but how can we change the control of the running VMs from
> the old OpenNebula server to the new one? Perhaps it is possible to copy the
> OpenNebula database file (and some others files) from the old server to the
> new one??? Is this possible when the old and new OpenNebula servers have
> different ips???
>
> Regards.
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.opennebula.org/pipermail/users-opennebula.org/attachments/20100714/c7a731ee/attachment-0003.htm>