[ovirt-users] Storage network clarification

[combuster]

Hi Fil,

this worked for me a couple of months back:

http://lists.ovirt.org/pipermail/users/2015-November/036235.html

I'll try to set this up again, and see if there are any issues. Which 
oVirt release are you running ?

Ivan

On 01/18/2016 02:56 PM, Fil Di Noto wrote:
> I'm having trouble setting up a dedicated storage network.
>
> I have a separate VLAN designated for storage, and configured separate
> IP addresses for each host that correspond to that subnet. I have
> tested this subnet extensively and it is working as expected.
>
> Prior to adding the hosts, I configured a storage network and
> configured the cluster to use that network for storage and not the
> ovirtmgmt network. I was hopping that this would be recognized when
> the hosts were added but it was not. I had to actually reconfigure the
> storage VLAN interface via oVirt "manage host networks" just to bring
> the host networks into compliance. The IP is configured directly on
> the bond0.<vlanid>, not on a bridge interface which I assume is
> correct since it is not a "VM" network.
>
> In this setup I was not able to activate any of the hosts due to VDSM
> gluster errors, I think it was because VDSM was trying to use the
> hostname/IP of the ovirtmgmt network. I manually set up the peers
> using "gluster peer probe" and I was able to activate the hosts but
> they were not using the storage network (tcpdump). I also tried adding
> DNS records for the storage network interfaces using different
> hostnames but gluster seemed to still consider the ovirtmgmt interface
> as the primary.
>
> With the hosts active, I couldn't create/activate any volumes until I
> changed the cluster network settings to use the ovirtmgmt network for
> storage. I ended up abandoning the dedicated storage subnet for the
> time being and I'm starting to wonder if running virtualization and
> gluster on the same hosts is intended to work this way.
>
> Assuming that it should work, what is the correct way to configure it?
> I can't find any docs that go in detail about storage networks. Is
> reverse DNS a factor? If I had a better understanding of what oVirt is
> expecting to see that would be helpful.
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