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Expert Oracle RAC Performance Diagnostics and Tuning by Murali Vallath

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CHAPTER 13

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Tuning Global Cache

Real Application Cluster (RAC) can be considered as an extension to the single instance configuration. As a concept, this is true, because RAC is a composition of several instances of Oracle. However, there are quite a few differences in the management of these components, the additional background process, the additional files, and the sharing of resources between instances, not to mention the additional layered components present at the operating system level to support a clustered hardware environment. All of these additional components in a RAC system make it different from a single-instance configuration. It ...

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