[ovirt-users] Team a NIC and add to ovirtmgmt vNIC

[Ekin Meroğlu]

Hi,

If I understood correctly, this operation does not incur a long downtime.

​To setup the bond, first ​y
ou'll need to select the relevant host, select
*​​Network Interfaces* and click
*​​Setup Host Networks*. At this step, you should be presented with
*​​NIC0* (eth0?) connected to
*​​ovirtmgmt*, and a standalone (and possibly down)
*​​NIC1* (eth1
​?​
). Just drag and drop
*​​NIC1* unto
*​​NIC0*, choose bond type and press
*​​OK*. After the bond is displayed, make sure you've selected both "
*​​Verify connectivity between Host and Engine*" and "
*​​Save network configuration*" options, and
​again ​
press
*​​OK*
​.​

​If all goes well, after the configuration you'll have a working bond with
ovirtmgmt on top of it. You'll have to repeat this for all hosts you'll be
configuring the new bond... All network downtime will be the total time of
bringing down eth0, creating bond0 and bringing up bond0 - no more than a
fraction of a minute normally. And this will only effect the guests on that
particular Host, not the whole cluster.​

A little side note on migrating from a single nic to a bond: if you plan to
add more VLAN tagged virtual networks to your new bond, keep in mind that
ovirtmgmt should also be VLAN tagged - you can not mix tagged and untagged
networks on a single bond.

​Regards,

On Mon, May 18, 2015 at 5:58 PM, Christophe TREFOIS <
christophe.trefois at uni.lu> wrote:

>  Dear all,
>
>  How I would go about in an existing setup with 1 NIC and 1 vNIC
> ovirtmgmt, to add a second NIC, team them up (bonding) and then assign that
> one to ovirtmgmt without too much downtime?
>
>  Does anybody have some experience on that?
>
>  Thank you for your help,
>
>  —
> Christophe
>
> Dr Christophe Trefois, Dipl.-Ing.
> Technical Specialist / Post-Doc
>
> UNIVERSITÉ DU LUXEMBOURG
>
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-- 
*Ekin Meroğlu** Red Hat Certified Architect*

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