[ovirt-users] Storage network clarification

[Fil Di Noto]

Thanks I will try this. I am running ovirt-engine 3.6.1.3-1.el7.centos

In the configuration described, is oVirt able to manage gluster? I am
confused because if oVirt knows the nodes by their ovirtmgmt network
IP/hostname aren't all the VDSM commands going to fail?



On Mon, Jan 18, 2016 at 6:39 AM, combuster <combuster at gmail.com> wrote:
> 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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>
>