[Pgi-wg] Definition of a Production Grid

[Arnie Miles]

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I've never heard of the number of services being part of a definition of
production. One service can be production, provided it meets the quality
of service demands of the enterprise.

Perhaps the reason size matters in grid is because no single item on the
grid can be depended upon, but after a certain size there are enough
examples of each item that the grid itself can boast "production
quality". Hence, a user's workstation "on the grid" may not be of
production quality, but 100,000 such workstations can produce
"production quality" level of service.

Arnie



David Wallom wrote:
> I have to firmly disagree. Production should refer to the quality and number
> of services that are available rather than its specific size. The scaling of
> an infrastructure has nothing at the moment to do with whether its resources
> are interoperable. Your separation of large is a completely arbitrary one. A
> production grid should be able to display policies and procedures for the
> management services and SLDs for the services that it provides users.
> 
> Are you suggesting for example that a single national grid is not a
> production service? I can assure you for example that GLOW and other
> components of OSG as well as the UK NGS etc get an awful lot of work done
> with many many publications in high value refereed journals etc. as a direct
> result. Maybe we could use publication impact of the work done as a measure
> instead, it would be as arbitrary as 'real work'?
> 
> David
> 
> On 17/03/2009 14:50, "Moreno Marzolla" <moreno.marzolla at pd.infn.it> wrote:
> 
>> David Wallom wrote:
>>> Hi Lawrence,
>> [...]
>>> Can I suggest that we just set performance, policy and procedure targets and
>>> go from there. I.e. You grid will have legally compliant accounting for
>>> utilisation by a number of users that are identified using a strong
>>> authentication and authorisation mechanism, across a set of physically
>>> separate resources that may or may not be legally owned by more than one
>>> legal entity. The services that these offer can be many and varied but all
>>> should operate to a defined quality of service definition.
>> Hi all,
>>
>> I think that this definition is a bit generic, in the sense that it
>> surely defines a "Grid", but I don't see how it addresses the term
>> "Production" (which I agree is a term a bit elusive to quantify/qualify
>> appropriately).
>> In my mind I always associated "production" grids to those large-scale
>> infrastructures (how much large?) that are used to get "real job" done
>> (what does "real job" mean?). This is what I thought was the line
>> dividing "production" grids from "non-production" ones.
>>
>> Moreno.
> 
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- --
Arnie Miles
Grid Middleware Architect
Adjunct Assistant Professor of Computer Science
Georgetown University
3300 Whitehaven Street NW
Washington, DC  20007
202.687.9379
http://thebes.arc.georgetown.edu

"Great spirits have always encountered violent opposition from mediocre
minds"  Albert Einstein
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