openstack team mailing list archive

[Doug Hellmann <doug.hellmann@xxxxxxxxxxxxx>]

On Nov 6, 2012, at 4:59 AM, Robert Collins <robertc@xxxxxxxxxxxxxxxxx> wrote:

> On Tue, Nov 6, 2012 at 10:53 PM, Julien Danjou <julien@xxxxxxxxxxx> wrote:
>> On Tue, Nov 06 2012, Graf Lucas (graflu0) wrote:
>> 
>>> I'm a little confused now... ;) Is the bare metal run by the platform
>>> operator the physical machine? What do you mean with the bare metal
>>> run to replace virtual instances for any project?
>> 
>> AFAIU, bare-metal provisionning is about using hardware (bare-metal)
>> rather than virtual instances as a flavor in Nova.
>> For such case, we won't be able to poll anything about the hardware.
>> 
>> For hardware ran by the operator, this will be doable.
> 
> We can still talk to the IPMI controller for the machine, which will
> get us lots of info, without running agents in the host os.

I think for billing it is enough to know that the server is allocated, since the hardware won't be shared between tenants (so it wouldn't make much sense to charge less if they only use 1/2 of the CPU capacity, for example). Using IPMI sounds like an interesting option for monitoring, though. We would need to add a pollster to a central agent, and it would need to know which instances are bare metal. I assume that info is available through a query somehow. 

Doug

> 
> -Rob
> 
> 
> 
> --
> Robert Collins <rbtcollins@xxxxxx>
> Distinguished Technologist
> HP Cloud Services