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As far as I can tell, the only way to put hosts/hypervisors into
availability zones through the UI in Icehouse is to put them into host
aggregates and assign the host aggregate to an availability zone.  It looks
like you can define availability zones directly on the compute nodes (or
could in 2012 at least) by modifying the nova.conf, but the UI based
assignment looks a lot more flexible.


On Thu, Jun 26, 2014 at 3:25 PM, Abhijeet Rastogi <abhijeet.1989 at gmail.com>
wrote:

> Hi Andrew,
>
> Sorry to jump-in in Dan's thread. May I know, why is there a need to
> create host aggregates in this case? As I understand, it's just a way to
> partition hosts which is invisible to users.
>
>
>
> On Thu, Jun 26, 2014 at 9:51 PM, Andrew Mann <andrew at divvycloud.com>
> wrote:
>
>> Dan,
>>
>> If I understand your question properly, you can do this from the Horizon
>> management web interface as an admin user. Under Admin->System Panel->Host
>> Aggregates setup 3 aggregates each in their own availability zone, and then
>> assign each host into a corresponding aggregate.
>>
>> I don't think the controller node needs any special configuration, and
>> the compute nodes should just need the configuration to use the specific
>> hypervisor you want on that host.  Each compute node must be running before
>> it can be added to the host aggregate through the UI.
>>
>>
>>
>> On Thu, Jun 26, 2014 at 10:45 AM, O'Reilly, Dan <Daniel.OReilly at dish.com>
>> wrote:
>>
>>> I’m building a cloud and have a question about architecture/viability.
>>> Right now, I have the following configuration:
>>>
>>>
>>>
>>> -          Controller node running RHEL 6.5
>>>
>>> -          Network node running RHEL 6.5
>>>
>>> -          5 node Ceph cluster for block and object storage
>>>
>>> -          3 compute nodes:
>>>
>>> o   1 running RHEL 6.5 and VMware as the hypervisor
>>>
>>> o   1 running RHEL 6.5 and KVM as the hypervisor
>>>
>>> o   1 running CentOS 6.5 and Xen as the hypervisor
>>>
>>>
>>>
>>> The basic question is on the compute nodes.  I’m doing 3 different
>>> hypervisors to do a best-of-breed study (each will be in its own
>>> availability zone).  Hence, one of each type.  But is it even possible to
>>> have 3 compute nodes like this, and if so, how do I configure the compute
>>> software that runs on the controller node to handle this; and how do I
>>> configure each of the 3 compute nodes as well?
>>>
>>>
>>>
>>> Dan O'Reilly
>>>
>>> UNIX Systems Administration
>>>
>>> [image: cid:638154011 at 09122011-048B]
>>>
>>> 9601 S. Meridian Blvd.
>>>
>>> Englewood, CO 80112
>>>
>>> 720-514-6293
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
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>>>
>>>
>>
>>
>> --
>> Andrew Mann
>> DivvyCloud Inc.
>> www.divvycloud.com
>>
>> _______________________________________________
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>> Post to     : openstack at lists.openstack.org
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>>
>>
>
>
> --
> Cheers,
> Abhijeet Rastogi (shadyabhi)
>



-- 
Andrew Mann
DivvyCloud Inc.
www.divvycloud.com
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