Open Stack

Host not hypervisor I think; consider nova baremetal, where hypervisor
== machine that runs tftpd and makes IPMI calls, and host == place
where the user workload will execute.

-Rob

On 29 September 2013 17:52, Mike Spreitzer <mspreitz at us.ibm.com> wrote:
> I have begun drafting a blueprint about more detailed host/hypervisor
> location information, to support the sort of policy-informed placement
> decision-making that Debo, Yathi, and I have been talking about.  The
> blueprint is at
> https://blueprints.launchpad.net/nova/+spec/hypervisor-location-attribute
> and the details are at
> https://wiki.openstack.org/wiki/Nova/HypervisorExtendedAttributes
>
> You see I am a little schizophrenic here about scope.  The blueprint is
> named quite narrowly, and the details page is named more broadly; this is
> because I am not sure what else you folks will chime in with.
>
> I am not sure whether this information should really be attached to a
> hypervisor or to a host.  I proposed hypervisor because currently the
> details for a hypervisor are a map (easily extended) whereas the details for
> a host are currently a list of uniformly-typed contents (not so easily
> extended).  But host might actually be more appropriate.  I am looking for
> feedback on whether/how to go that way.  BTW, where would I find
> documentation on host details?  The current page on nova extensions
> (http://docs.openstack.org/api/openstack-compute/2/content/ext-compute.html)
> is lacking most of them.
>
> You will see that I have proposed what the API looks like, but not the
> source of this additional information.  I will ask my colleagues who have
> something like this locally, how they got it done and what they would
> recommend to OpenStack.  Perhaps you good folks have some suggestions.  Is
> there obviously one way to do it?  Is it obvious that there can be no one
> way and so a plug point is required?
>
> Thanks,
> Mike
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>



-- 
Robert Collins <rbtcollins at hp.com>
Distinguished Technologist
HP Converged Cloud