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Chapter 2  Grid, Utility Computing and Clusters 

The Nature of Grid

Grid Computing is an emerging infrastructure that aims at providing a mechanism for sharing and coordinating the use of diverse computing resources. The word ‘Grid’ is often used as an analogy with the electric power grid, which provides pervasive access to electricity.

As Grid Computing makes long strides and impacts many organizations in the IT world with its utility-like access to computational resources, a question remains in everyone’s mind if Grid Computing can become similar to the Electric Power Grid of the 20th century. While the state of Grid Computing is still in its infancy, there are definite signs of similarities according to Rajkumar Buyya and Madhu Chetty [1.2], the researchers from University of Melbourne, Australia.

As seen in Table 2.1, there many apparent similarities in the electric power grid infrastructure and computational grid structure. However, the computational grid is more varied and more complex than electric grid. The existence of hardware components and user specific software components and applications make all the difference. Nevertheless, the comparison is worth noting.

For more information, see the book Oracle 11g Grid and Real Application Clusters 30% off if you buy it directly from Rampant TechPress . 

Written by top Oracle experts, this RAC book has a complete online code depot with ready to use RAC scripts.

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