[fm-discuss] Proposal: libtopo eumeration of power supplies and fans via IPMI

[Richard Elling]

Russ McManus wrote:
> Eric Schrock wrote:
>> On Mon, Jan 07, 2008 at 04:17:32PM -0800, Richard Elling wrote:
>>   
>>> I have some heartburn over this statement.  I think it will be confusing 
>>> in thoses
>>> cases where a set of domains may share the same physical chassis (eg. blade
>>> servers).  Perhaps we need a different name, other than "chassis'?
>>>
>>>     
>>
>> Chassis is already an established term in the hc:/ topology, with
>> 'systemboard' to differentiate between multiple domains.  I don't see
>> any reason to deviate from the established convention, since the FMRIs
>> in this case are in fact associated with the chassis, not some other
>> construct.
>>
>> - Eric
>>   
>
> I agree. In the context of enumerating this aspect of hardware 
> component topology, "chassis" works just fine.
>

The reason I have heartburn is the statement about "only one chassis."
Since each blade can claim there is "only one chassis" it causes confusion.
It took us years to train people for this with the starcat, but that is 
a small
segment of the population, even today.  Similarly, virtualized machines
can be considered as sharing a chassis, of sorts.  If we clarify this by
saying something like "only pertains to the one chassis containing parts
that this domain can see" we may be speaking the truth, but it leaves
the customer feeling empty.
 -- richard