[ovirt-users] separate ovirtmgmt from glusterfs traffic

Tue Nov 18 10:56:52 UTC 2014

<html><bodyDemeter Tibor píše v Po 17. 11. 2014 v 14:10 +0100:
> Hello,
> 
> Thank you for the detailed reply.
> 
> Yes, the vms are used an independent network/network interfaces for access the internet.
> So, in this case I could separate the high glusterfs traffic from ovirt management traffic when I disable "vm" network on ovirtmgmt interface.
> 
> I will try-out this night this feature.

Hi,

  you can try it only if you don't have hosted engine ;)

Cheers,

Luf

> 
> Thanks a lot,
> 
> Tibor
> 
> 
> 
> ----- Eredeti üzenet -----
> > Hi Tibor,
> > 
> > On 13/11/14 13:41, Demeter Tibor wrote:
> > > Hi,
> > > 
> > > I have a 3 node gluster based cluster. There are 3x3 Nic with bonding.
> > > Sometimes the management is very slow because high gluster traffic.
> > > 
> > > Is it possible to separate ovirtmgmt network from glusterfs traffic?
> > > I have only one interface (ovirtmgmt) for all of services (migration, etc).
> > > I just wondering I will make three VLANs for these services and use the
> > > QoS function. But how can specify glusterfs for use an other vlan for
> > > gluster traffic an a other one for management?
> > 
> > This generally sounds like a good plan, but note that QoS on the
> > host-level will only become available in oVirt 3.6 (it might become
> > available soon on master, if you're feeling lucky...).
> > 
> > VM-level QoS (available since 3.3) won't help you with "administrative"
> > traffic (i.e. traffic that isn't going into / coming out of the VMs
> > themselves).
> > 
> > > Also, I have more questions about this:
> > > 
> > > - If I specify a VLAN on ovirtmgmt, then what happend on nodes? I'm
> > > afraid the nodes will lost the connection with each other nodes.
> > 
> > If the switch allows this VLAN to reach all hosts, there shouldn't be a
> > problem; since oVirt 3.4 the VLAN tagging should "propagate" to all
> > active hosts. However, see my comment below concerning "VM network".
> > 
> > > - Is it possible on a live system? What will happen with the mounted
> > > glustefs based datastores?
> > 
> > I'm not knowledgeable about gluster specifics, but let's see if I can
> > help. What's the current situation with the gluster network, is it
> > already VLAN-tagged? If it is and you're not moving it to another
> > interface on the hosts, I *think* things should be fine.
> > 
> > > - What does "vm network" mean on ovirtmgmt interface? Can I use this for
> > > seperate network traffic?
> > 
> > This means that a bridge is created for this network on hosts. If VMs
> > don't use this network (i.e. virtual interfaces are assigned profiles of
> > ovirtmgmt), you can make it non-VM (with no VLAN tagging) and have it
> > assigned to the same host interface as VLAN-tagged networks (I would say
> > this is less risky than VLAN-tagging ovirtmgmt).
> > 
> > > 
> > > 
> > > My plan is
> > > - vlan.101 ovirtmgmt
> > > - vlan 102 glusterfs
> > > - vlan 103 migration
> > > - vlan 104 display
> > > 
> > > What is the recommended procedure of this?
> > > 
> > > Thanks in advance,
> > > 
> > > Regards,
> > > 
> > > Tibor
> > > 
> > > 
> > > 
> > > 
> > > _______________________________________________
> > > Users mailing list
> > > Users at ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > > 
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> > 
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