The following are required for a high availability configuration:
Each computer has an independent instance of Oracle TimesTen.
Each computer has an odbc.ini file that contains a separate DSN for each instance of Oracle TimesTen. Each Oracle TimesTen DSN uses the client/server mode of connection.
A BI Server repository can point to one or more physical repositories, but one set of aggregates exists per physical data source. Each physical data source has its own connection pool.
Parent topic: Deploying Oracle Exalytics for High Availability