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Host aggregate - can it grow dynamically?

asked 2013-08-19 05:28:28 -0600

Sudheesh gravatar image

1) Can I Expose the host-aggregate as availability zone?

2) Is there anyway to make the Host Aggregate dynamically growing (with each VM creation- add the host to host aggregate if its not already there)?

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I think that if you explain in more details your use case you may have more results. Alternatively post your request on the General mailing list.

smaffulli gravatar imagesmaffulli ( 2013-08-23 15:40:15 -0600 )edit

The host aggregates are not meant to contain your VM's but the actual nodes that run your open stack cluster so that you can partition what portions clients can use and bill them separately.

So if you have one aggregate of SSD it's pricier than old HHD's both separated by aggregates/zones

ethode gravatar imageethode ( 2015-04-02 18:16:24 -0600 )edit

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answered 2015-08-19 14:18:04 -0600

dasp gravatar image

1) Yes, when you create a host-aggregate, you put that in an availability zone. It could be the default "nova" availability zone (which always exists if you don't create your own). You can read more on that at

2) Host aggregates don't automatically grow - they consist of physical nodes. If you can provision those automatically, then you can probably automate adding them to Host Aggregate.

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Asked: 2013-08-19 05:28:28 -0600

Seen: 139 times

Last updated: Aug 19 '15