[openstack-dev] [Nova] [Cells] Stupid question: Cells v2 & AZs

Belmiro Moreira moreira.belmiro.email.lists at gmail.com
Wed May 24 06:38:24 UTC 2017

Hi David,
AVZs are basically aggregates.
In cells_v2 aggregates are defined in the cell_api, so it will be possible
to have
multiple AVZs per cell and AVZs that spread between different cells.


On Wed, May 24, 2017 at 5:14 AM, David Medberry <openstack at medberry.net>

> Hi Devs and Implementers,
> A question came up tonight in the Colorado OpenStack meetup regarding
> cells v2 and availability zones.
> Can a cell contain multiple AZs? (I assume this is yes.)
> Can an AZ contain mutliple cells (I assumed this is no, but now in
> thinking about it, that's probably not right.)
> What's the proper way to think about this? In general, I'm considering AZs
> primarily as a fault zone type of mechanism (though they can be used in
> other ways.)
> Is there a clear diagram/documentation about this?
> And consider this to be an Ocata/Pike and later only type of question.
> Thanks.
> -dave
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