[Users] virt-manager migration

[Jeremiah Jahn]

Well, that was fun. So I let the ovirt engine install to a running
host that already had kvm/libvirt running on it. Don't ask why, but it
did happen.  After figuring out how to setup a sasl user/password and
adding qemu to the disk group I could startup all of my guests again.
  My host now shows up in the list of hosts, but has "One of the
Logical Networks defined for this Cluster is Unreachable by the Host."
 error sitting on it.  ovirt-node-setup also tells me I should setup a
network.   I currently have 6 bridges running on this thing all one
for each vlan. I'm unsure as to how to meld the 'bondX' in
ovirt-node-setup with my current network configuration to resolve the
error.  esp given that I don't actually want to bond any of my NIC's
together at this point.  I do realise I'm doing this the hard way.  My
goal at the moment is to just get the host to fully report in the
engine, at which point I think I'll be able to use v2v to finish up
the rest.

Thanks for any suggestions or pointers.


On Thu, Apr 3, 2014 at 10:29 AM, Ryan Barry <rbarry at redhat.com> wrote:
>> From: "Jeremiah Jahn" <jeremiah at goodinassociates.com>
>> To: users at ovirt.org
>> Sent: Wednesday, April 2, 2014 8:38:02 PM
>> Subject: [Users] virt-manager migration
>
>>
>
>> Anyway, long story short. I'm having a difficult time finding
>> documentation
>> on migrating from virt-manager to oVirt. As well as installing ovirt-nodes
>> manually. I'd love to find this perfect world where I can just install the
>> ovirt-node RPMs on my already running Hosts and begin to have them managed
>> by the oVirt engine. Without and serious downtime.
>
> The usual way is to go through virt-v2v. Essentially, you'd install the
> engine somewhere and configure a storage domain (the properties of which
> vary, but it's UUIDed and the UUID must match the engine) to bring the
> datacenter up, then add an export domain (which is also UUIDed).
>
> Once an export domain is created, virt-v2v can move your VMs over, but with
> downtime.
>
> As far as turning your existing hosts into nodes, adding them from the
> engine is the easiest way (there's a wizard for this). It's possible to
> install the ovirt-node RPMs directly, but they take over your system a bit,
> and it's probably not what you're looking for. The engine can manage regular
> EL6/fedora hosts.
>
> But registering to the engine will reconfigure libvirt, so the general path
> is:
>
> Install engine.
> Live-migrate VMs off one of your hosts.
> Add that host as a node.
> virt-v2v machines than can take downtime (can you get a maintenance window)?
> Bring them up on the new node.
> Repeat until your environment is converted.