Re: [ovirt-users] Storage VLAN Issue

1 Nov 2016

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I finally got around to re-creating this scenario, only I did it with versi=
on 4.0.4 and I did not experience the same problem so I guess I would consi=
der it fixed.

Thanks!

Kendal Montgomery
Lab Manager
Columbus Collaboratory
614-407-5584

Get Outlook for Android

From: Edward Haas
Sent: Sunday, August 21, 3:00 AM
Subject: Re: [ovirt-users] Storage VLAN Issue
To: Kendal Montgomery
Cc: users@ovirt.org

On Wed, Aug 17, 2016 at 2:49 PM, Kendal Montgomery <kmontgomery@cbuscollabo=
ratory.com<mailto:kmontgomery@cbuscollaboratory.com>> wrote:

Hi all,

I just recently started testing out oVirt in our lab.  I'm using CentOS 7 o=
n my hosts and using the hosted-engine model, and the oVirt 3.6 repository.=
  I have NFS storage.  I ran across what I think is a bug of some sort, and=
 I'm curious if anyone else has tried this or know what's going on.

I wanted to be able to expose the NFS server (not necessarily the share use=
d for oVirt storage domains, but other shares on the NFS server) to VMs run=
ning on my host (currently my setup only involves a single host). I have tw=
o 10GbaseT interfaced bonded together on the hose with two VLAN networks on=
 it currently, one for the management network, one for storage.  When the h=
osted-engine deployment was set up, I ended up with an ovirtmgmt interface =
that was bridged to my infrastructure vlan interface (vlan 1080).  So, I ad=
ded another network in my oVirt cluster named VM-Storage with vlan 1092 (my=
 storage network).  Here is approximately how I expected this to end up:

bond0 - (bonded interface)

  - bond0.1092 (STORAGE - vlan interface)

     - VM-storage (bridged interface)

  - bond0.1080 (INFR - van interface)

    - ovirtmgmt (bridged interface)

However, when I did network setup on the host, and dragged the VM-Storage n=
etwork over to the network interface and hit OK, the UI just froze, and for=
 a few seconds I checked on the host via ssh session and the VM-storage bri=
dge was setup, then the server just rebooted.  After it rebooted, my vlan i=
nterface was no longer there and it seems like both the hosted engine VM an=
d the host ended up being rebooted.  In thinking about it, I may have cause=
d at least a temporary outage with my NFS storage when the new bridged inte=
rface was set up which caused (maybe) the HA agent to think the hosted engi=
ne vm went away or something, and that cause the reboots.  Not entirely sur=
e, but this was certainly unexpected.  I have tried several times and the s=
ame result each time.

I did check that any other VM network with a different VLAN ID provisions j=
ust fine on the host, so I assume there's something that happens when this =
storage network is provisioned that is catching oVirt off-guard somehow.

Anyone else have this issue before?  Can I solve this by adding another hos=
t, then moving the hosted-engine to a different host while I add the storag=
e network to each host?

Thanks.

Kendal Montgomery

Lab Manager

O: 614.407.5584<tel:614.407.5584> | M: 614.571.0172<tel:614.571.0172>

kmontgomery@cbuscollaboratory.com<mailto:kmontgomery@cbuscollaboratory.com>

Hi Kendal,

Please provide the logs from your host: Especially messages, vdsm.log and s=
upervdsm.log.
ovirtmgmt network is set as a VLAN network in Engine? ( a screenshot of you=
r network configuration on Engine may help)

Thanks,

Edy.

--_000_CO2PR04MB778F99D5436726767369311A9A10CO2PR04MB778namprd_
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<body>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
I finally got around to re-creating this scenario, only I did it with versi=
on 4.0.4 and I did not experience the same problem so I guess I would consi=
der it fixed.</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Thanks!</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Kendal Montgomery<br>
Lab Manager<br>
Columbus Collaboratory<br>
614-407-5584</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Get Outlook for Android<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
From: Edward Haas<br>
Sent: Sunday, August 21, 3:00 AM<br>
Subject: Re: [ovirt-users] Storage VLAN Issue<br>
To: Kendal Montgomery<br>
Cc: users@ovirt.org<br>
<br>
<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
On Wed, Aug 17, 2016 at 2:49 PM, Kendal Montgomery <<a href=3D"mailto:km=
ontgomery@cbuscollaboratory.com">kmontgomery@cbuscollaboratory.com</a>> =
wrote:</p>
<blockquote type=3D"cite">
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Hi all,<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
I just recently started testing out oVirt in our lab.  I’m using=
 CentOS 7 on my hosts and using the hosted-engine model, and the oVirt 3.6 =
repository.  I have NFS storage.  I ran across what I think is a =
bug of some sort, and I’m curious if anyone else has
 tried this or know what’s going on.<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
I wanted to be able to expose the NFS server (not necessarily the share use=
d for oVirt storage domains, but other shares on the NFS server) to VMs run=
ning on my host (currently my setup only involves a single host). I have tw=
o 10GbaseT interfaced bonded together
 on the hose with two VLAN networks on it currently, one for the management=
 network, one for storage.  When the hosted-engine deployment was set =
up, I ended up with an ovirtmgmt interface that was bridged to my infrastru=
cture vlan interface (vlan 1080).  So,
 I added another network in my oVirt cluster named VM-Storage with vlan 109=
2 (my storage network).  Here is approximately how I expected this to =
end up:<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
bond0 - (bonded interface)</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
  - bond0.1092 (STORAGE - vlan interface)</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
     - VM-storage (bridged interface)</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
  - bond0.1080 (INFR - van interface)</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
    - ovirtmgmt (bridged interface)<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
However, when I did network setup on the host, and dragged the VM-Storage n=
etwork over to the network interface and hit OK, the UI just froze, and for=
 a few seconds I checked on the host via ssh session and the VM-storage bri=
dge was setup, then the server just
 rebooted.  After it rebooted, my vlan interface was no longer there a=
nd it seems like both the hosted engine VM and the host ended up being rebo=
oted.  In thinking about it, I may have caused at least a temporary ou=
tage with my NFS storage when the new bridged
 interface was set up which caused (maybe) the HA agent to think the hosted=
 engine vm went away or something, and that cause the reboots.  Not en=
tirely sure, but this was certainly unexpected.  I have tried several =
times and the same result each time.<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
I did check that any other VM network with a different VLAN ID provisions j=
ust fine on the host, so I assume there’s something that happens when=
 this storage network is provisioned that is catching oVirt off-guard someh=
ow.<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Anyone else have this issue before?  Can I solve this by adding anothe=
r host, then moving the hosted-engine to a different host while I add the s=
torage network to each host?<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Thanks.<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
<b>Kendal Montgomery</b></p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
<b>Lab Manager</b></p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
O: <a href=3D"tel:614.407.5584">614.407.5584</a> | M: <a href=3D"tel:6=
14.571.0172">614.571.0172</a></p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
<a href=3D"mailto:kmontgomery@cbuscollaboratory.com">kmontgomery@cbuscollab=
oratory.com</a><br>
</p>
</blockquote>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Hi Kendal,<br>
</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Please provide the logs from your host: Especially messages, vdsm.log and s=
upervdsm.log.<br>
ovirtmgmt network is set as a VLAN network in Engine? ( a screenshot of you=
r network configuration on Engine may help)</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Thanks,</p>
<p dir=3D"auto" style=3D" text-align: left; margin-top: 25px; margin-bottom=
: 25px; font-family: sans-serif; font-size: 11pt; color: black; background-=
color: white ">
Edy.<br>
<br>
<br>
</p>
</body>
</html>

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