<p dir="ltr">Sounds like an extra weighter to try and balance load between your two AZs might be a nicer way to go.</p>
<p dir="ltr">The easiest way might be via cells, one for each AZ . But not sure we merged that support yet. But there are patches for that.</p>
<p dir="ltr">John</p>
<div class="gmail_quote">On 25 Mar 2014 20:53, "Sangeeta Singh" <<a href="mailto:singhs@yahoo-inc.com">singhs@yahoo-inc.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="font-size:14px;font-family:Calibri,sans-serif;word-wrap:break-word">
<div>Hi,</div>
<div><br>
</div>
<div>The availability Zones filter states that theoretically a compute node can be part of multiple availability zones. I have a requirement where I need to make a compute node part to 2 AZ. When I try to create a host aggregates with AZ I can not add the node
in two host aggregates that have AZ defined. However if I create a host aggregate without associating an AZ then I can add the compute nodes to it. After doing that I can update the host-aggregate an associate an AZ. This looks like a bug.</div>
<div><br>
</div>
<div>I can see the compute node to be listed in the 2 AZ with the availability-zone-list command.</div>
<div><br>
</div>
<div>The problem that I have is that I can still not boot a VM on the compute node when I do not specify the AZ in the command though I have set the default availability zone and the default schedule zone in nova.conf.</div>
<div><br>
</div>
<div>I get the error “ERROR: The requested availability zone is not available”</div>
<div><br>
</div>
<div>What I am trying to achieve is have two AZ that the user can select during the boot but then have a default AZ which has the HV from both AZ1 AND AZ2 so that when the user does not specify any AZ in the boot command I scatter my VM on both the AZ in a
balanced way.</div>
<div><br>
</div>
<div>Any pointers.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Sangeeta</div>
</div>
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