[Pgi-wg] Definition of a Production Grid

[Steven Newhouse]

These are interesting thoughts... more in defining "effective grids"
rather than "production grids".

1. Multi-organisational (instead of multi-institutional)

2. The Virtual Organisation (composed of multiple real organisations)

3. X509 Proxy Certificate (as a means of encapsulating an identity with
additional information that can be used for authentication - currently
delivered for many of us through VOMS)

4. Multiple Services

5. An Independent (or Standalone) Information System (i.e. one that sits
outside or is parallel to any particular service)

6. The ability to scale
Along functional (users, services, computing activities, data) &
non-functional (encompassing different administrative, policy and legal)
parameters.

Hopefully this is more encompassing.

Steven 

Dr Steven Newhouse
EGEE Technical Director
http://cern.ch/Steven.Newhouse


> -----Original Message-----
> From: pgi-wg-bounces at ogf.org [mailto:pgi-wg-bounces at ogf.org] On Behalf
> Of Laurence Field
> Sent: 17 March 2009 14:58
> To: pgi-wg at ogf.org
> Subject: [Pgi-wg] Definition of a Production Grid
> 
> Dear All,
> 
> The word Grid means different things to different people and this
quite
> frequently leads to misunderstandings and conflict. This is especially
> true within OGF where people from many different domains and
> backgrounds
> discuss "Grids".  While each and every definition themselves are as
> valid as each other, trying to discuss a concept from two possibly
> unrelated perspectives is quite difficult.
> 
> Before we move forward in the PGI activity we therefore need
understand
> what we mean by "Grid" and hence the problem we are trying to solve.
> It
> seems that in some recent threads the word "production" has cause some
> disagreements as this word is more commonly used to reflect quality
> rather than concepts.
> 
>  From my perspective I can try to define the core properties that I
see
> are key when describing the EGEE infrastructure. I would hope that
> similar infrastructures with whom EGEE would like to interoperate
would
> have a similar description.
> 
> I would like to introduce the term "Muti-institutional infrastructures
> for e-Science" which can be used to describe something with the
> following properties.
> 
> 1) Multi-institutional.
> The EGEE infrastructure is composed by linking resources that reside
at
> autonomous academic institutes. The key concept here is the
> administrative domain which maps to a real institute and that there is
> more than one institute in the infrastructure.
> 
> 2) The Virtual Organization
> The main aspects that links these institutes is the drive to
> collaborate
> in order to do science. The collaborations are defined by Virtual
> Organizations.
> 
> 3) x509 Certificates and Proxies
> Users are identified by x509 certificates which are provided by CAs
> accredited by the IGTF. Proxies are typically used to interact with
> services.
> 
> 4) VOMS
> To identify which VO a user is belong to is by contacting VOMS. VOMS
> also supports Roles an Groups within the VO which is implemented by
> adding attributes to the proxy.
> 
> 5) Multiple Services
> The are many different types of services each of which can define
their
> own interfaces which may or many not be a Web Service.
> 
> 6) Parrallel Information System
> The information about services is found by querying an information
> system which is not necessarily related to the service interface.
> 
> 6) Scale
> 100s of administrative domains, thousands of users, thousands of
> services, millions of computing actives and petabytes of data.
> 
> This may be a can of worms but if we can agree on a set of properties
> for what we mean by "Production Grid" it might help in the
discussions.
> I don't mean that anything that has different properties is not a
> production grid, I just want to clarify what this group mean when it
> talks about a Grid infrastructures.
> 
> Laurence
> 
> 
> Laurence
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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