Converting Databases to Oracle RAC Using rconfig or Oracle Enterprise Manager

The following list describes scenarios for converting a single-instance Oracle database to an Oracle RAC database:

  • Converting a single-instance Oracle Database 12c database to an Oracle RAC 12c database, running out of the same Oracle home and using the same data files as the single-instance database.

    In this scenario, run the rconfig utility from the Oracle RAC database home, or use the Convert to RAC option on the single-instance database target of Oracle Enterprise Manager Cloud Control.

  • Converting a single-instance database that uses a release of Oracle Database earlier than Oracle Database 12c to an Oracle RAC 12c database, running out of the same Oracle home and using the same data files as the single-instance database

    In this scenario, use Oracle Universal Installer and Database Upgrade Assistant (DBUA) to update the single-instance database to Oracle Database 12c. Then use rconfig or the Oracle Enterprise Manager Convert to RAC option, as described in the preceding scenario.

  • Converting a single-instance Oracle Database 12c to an Oracle RAC 12c database, running out of a different Oracle home and using the same data files as the single-instance database.

    In this scenario, run the rconfig utility in the target database home, or use the Convert to RAC option in the single-instance database target of Oracle Enterprise Manager Cloud Control. Provide the file storage location when prompted.

    Note:

    If you specify Oracle home users for both the target database home and the source database home, then the Oracle home user for the target database home must be the same as the Oracle home user for the source database home.

  • Converting a single-instance Oracle Database 12c to an Oracle RAC 12c database, running out of a different Oracle home, and where the host on which the single-instance database runs is not a node used by the Oracle RAC database.

    In this scenario, create a clone image of the single-instance database, and move the clone image to a host that is one of the nodes used by the Oracle RAC database. Then use rconfig or the Oracle Enterprise Manager Convert to RAC option, as described in the preceding scenario.