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Oracle Database 11g Oracle Real Application Clusters Handbook, Second Edition by K Gopalakrishnan

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Oracle RAC Components

The Oracle Database 11g RAC stack is slightly different from previous versions of Oracle because the clustering software is totally integrated into the RDBMS kernel in the latest version. In earlier versions of Oracle RAC the third-party vendors (except for Linux and Windows ports, where Oracle started shipping its own clusterware) provide the underlying clustering functionality. Starting from Oracle 11g Release 2, Oracle Clusterware stack is known as Oracle Grid Infrastructure.

The major components of Oracle RAC are

image Shared disk system

Oracle Clusterware

Cluster interconnects

Oracle kernel components

Figure 3-2 shows the ...

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