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Technical illustration showing geographically separated replicas of Oracle Internet Directory
What is Oracle Internet Directory Replication?

For distributed environments, an administrator can configure replication. Replication is the process of copying and maintaining the same information on multiple directory servers. Replication can improve performance by providing more servers to handle queries and by bringing the data closer to the client. It improves reliability by eliminating risks associated with a single point of failure.

To achieve a very comprehensive high availability configuration, you can configure Oracle Internet Directory to run on an Oracle RAC environment. This involves running Oracle Internet Directory instances and the Oracle Internet Directory-designated database on all the Oracle RAC nodes.