RAC integration

Real Application Cluster (RAC) is a widely used Oracle cluster product that provides high availability and scalability for Oracle databases. When configuring Data Guard on RAC databases, there are some points that we need to take into consideration in order to build a proper integration. For a RAC primary database, we may prefer configuring single instance or RAC standby databases. These configurations will be discussed separately. A single instance primary database and RAC standby database configuration is not common and doesn't require any special attention.

A RAC primary database with a single instance standby database

Creating a single instance standby database for a RAC primary database is a very frequently encountered configuration. The following points are important when configuring a single instance standby for a RAC primary database:

• The LOG_ARCHIVE_DEST_n parameter in the primary database, which shows the standby database, must be configured with the SID='*' option...