[Users] Multiple network interfaces on engine?

[Itamar Heim]

On 09/23/2013 02:41 PM, Rickard Kristiansson wrote:
> OK. Maybe I'm asking for something irrelevant, but to answer René's
> question; The use case is that there are two separate physical networks
> for general IP and storage IP, and Engine seems to require to be able to
> reach the NFS server to validate the connection when configuring
> mapping. So to be able to configure a NFS server, the Engine needs to be
> connected also to the storage network.

engine does not need to be connected to storage network. it does all 
storage access via the hosts.

> It worked fine after manually tweaking the sysconfig/network-scripts,
> but this config was then shortly overridden by Engine discovering and
> trying to use the second NIC for bonding with ovirtmgmt.

the engine isn't trying to bond by itself. have you bonded the 
interfaces on the host setup-network dialog?

>
> ------------------------------------------------------------------------
> *Från: *"Michael Pasternak" <mpastern at redhat.com>
> *Till: *"Rickard Kristiansson" <rickard at sanuksystems.com>,
> users at ovirt.org, "Oved Ourfalli" <ovedo at redhat.com>
> *Kopia: *"Ohad Levy" <olevy at redhat.com>
> *Skickat: *måndag, 23 sep 2013 13:35:40
> *Ämne: *Re: [Users] Multiple network interfaces on engine?
>
> On 09/23/2013 02:23 PM, Rickard Kristiansson wrote:
>  > Hmm.. yes, I do have the storage network configured in DC and
> Cluster, and also attached to all my hypervisors.
>  > The question is just how I also attach it to the Engine server, as
> this isn't visible as a node in the GUI?
>
> i think this could be done with puppet, afaik some work for integrating
> it to
> oVirt been done lately, though not sure if it's already available,
>
> oved?
>
>  >
>  >
>  >
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>  > *Från: *"Michael Pasternak" <mpastern at redhat.com>
>  > *Till: *"Rickard Kristiansson" <rickard at sanuksystems.com>
>  > *Kopia: *users at ovirt.org, "\"René \"Koch (ovido)\"\"" <r.koch at ovido.at>
>  > *Skickat: *måndag, 23 sep 2013 13:20:06
>  > *Ämne: *Re: [Users] Multiple network interfaces on engine?
>  >
>  > On 09/23/2013 01:50 PM, Rickard Kristiansson wrote:
>  >> Thanks Michael,
>  >>
>  >> I'm still trying to get my head around this, but I can't see how I
> configure the networks on the engine?
>  >> For nodes and AOI it's OK, but in my case I am running the engine as
> a separate server which is not a node and does not show up as a Host in
> the GUI.
>  >> Or do I need to add the engine as a host in the GUI as well, to be
> able to configure it?
>  >
>  > IIUC your question, you have various options:
>  >
>  > 1. GUI
>  > 2. SDKs
>  > 3. CLI
>  >
>  > you need to create network in DC, attach it to cluster, attach to
> host NIC/s (if you want it to be
>  > atomic operation, i.e you expect connectivity loss during the
> operation/s, setupnetworks should be used,
>  > otherwise you can use attach-network dialogues in UI)
>  >
>  >>
>  >>
>  >>
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>  >> *Från: *"Michael Pasternak" <mpastern at redhat.com>
>  >> *Till: *"Rickard Kristiansson" <rickard at sanuksystems.com>
>  >> *Kopia: *users at ovirt.org
>  >> *Skickat: *måndag, 23 sep 2013 12:21:40
>  >> *Ämne: *Re: [Users] Multiple network interfaces on engine?
>  >>
>  >> On 09/23/2013 12:54 PM, Rickard Kristiansson wrote:
>  >>> Hi,
>  >>>
>  >>> I want to use two network interfaces connected to different
> networks in Engine (3.3), where one is for ovirtmgmt and one is for a
> separate storage network.
>  >>> It works fine for a minute or so after rebooting Engine, but then
> the configuration is changed by Engine, connecting both interfaces to
> bond0 and losing connectivity (as
>  >>> obviously you can't bond those two interfaces when they are
> connected to separate physical networks..).
>  >>> What is the mechanism doing this,
>  >>
>  >> please see this [1].
>  >>
>  >> [1] http://www.ovirt.org/Features/Design/Network/SetupNetworks
>  >>
>  >>> and it is possible to disable this automatic network bonding on the
> engine so that we can use separate networks on the network interfaces..?
>  >>
>  >> attaching logs would help, but i guess it happen cause you did not saved
>  >> your host network config, i.e when host got rebooted, it performs
> roll-back
>  >> to old config, this is actually disaster recovery mechanism.
>  >>
>  >>>
>  >>> Rickard
>  >>>
>  >>> **
>  >>>
>  >>>
>  >>> _______________________________________________
>  >>> Users mailing list
>  >>> Users at ovirt.org
>  >>> http://lists.ovirt.org/mailman/listinfo/users
>  >>>
>  >>
>  >>
>  >> --
>  >>
>  >> Michael Pasternak
>  >> RedHat, ENG-Virtualization R&D
>  >>
>  >
>  >
>  > --
>  >
>  > Michael Pasternak
>  > RedHat, ENG-Virtualization R&D
>  >
>
>
> --
>
> Michael Pasternak
> RedHat, ENG-Virtualization R&D
>
>
>
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