Grid is a specific term that describes a community of use as well as a
technology
The cloud is a marketting term that means 'magic happens here' and I
mean that without insulting intent it is a foggy sort of concept,
litterally,and there I mean litterally litterally
Grid is a style of loosely coupled mimd computing. A grid worth the
name can distribute a task across hundreds of nodes it is general
purpose parallel processing
Cloud computing is outsourced services. That could be general purpose
as in amazon elastic compute cloud or could be very speciffic like
gmail or twitted
Sent from my iPhone
On Feb 22, 2010, at 1:08 PM, Dave CROCKER <dhc2(_at_)dcrocker(_dot_)net> wrote:
On 2/22/2010 12:59 PM, Melinda Shore wrote:
On Feb 22, 2010, at 11:52 AM, Brian E Carpenter wrote:
My thought exactly. The distinction between cloud computing and
open grid
computing is very small (or possibly zero)
With all due respect, Brian, it's really not. With cloud
computing you're typically dealing with multitenanting issues
and a bunch of other layer 8-9 stuff that tends (of necessity)
to be reflected down the stack, and I think I can see an
argument for cloud computing belonging in the RAI space,
or at least having substantial overlap.
Having recently gone through the exercise of trying to understand
what these different terms actually meant, I discovered that the
underlying problem is that you are both right, as are a variety of
other people who have other views...
As already noted, the term 'cloud' is now used in many different
ways, including as a synonym for 'network' and for 'Internet', even
amongst technical folk. (Really.)
There are some people who have very specific and nuanced technical
definitions, including distinguishing cloud from grid. But no set
of definitions seems to have a broad base of support.
For defining 'cloud', one group I'm participating in decided it was
happy with the NIST language:
<http://csrc.nist.gov/groups/SNS/cloud-computing/cloud-def-v15.doc>
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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