||Oracle Tips by Burleson
Chapter 2 Grid, Utility
Computing and Clusters
The Nature of Grid
With sudden interest in the grid and
grid-related technology, many IT vendors and analysts are creating
their own vision, definition and solutions in the grid space. Grids
have moved from the obscurely academic to the highly popular. We
read about Compute Grids, Data Grids, Science Grids, Access Grids,
Knowledge Grids, Bio Grids, Sensor Grids, Cluster Grids, Campus
Grids, Tera Grids, and Commodity Grids as proposed by various IT
companies and researchers. There are so many flavors and variations,
based on the functionality and sometimes based on the understanding.
Many IT vendors freely term their solutions as Grid technologies and
try to fit them into some category.
Let’s ponder what Ian Foster has to say,
“Ultimately the Grid must be evaluated in
terms of the applications, business value, and scientific results
that it delivers, not its architecture. Nevertheless, the questions
above must be answered if Grid computing is to obtain the
credibility and focus that it needs to grow and prosper.”
Ian Foster’s 3-point checklist for a grid
Coordination of Distributed Resources - Grid controls and
integrates different resources and users within different
control domains – for example desktops versus large computers,
different units of same enterprise and different enterprise. It
also addresses the issues of security, policy, membership and
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