July 2006
Intermediate to advanced
704 pages
14h 36m
English
Content preview from Oracle 10g RAC Grid, Services & ClusteringBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. Real Application Cluster Architecture
Real Application Cluster (RAC) can be considered an extension of the regular 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. The real difference between a database and an instance is also noticed in a RAC configuration. ...
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