You can use rconfig, or Oracle Enterprise Manager to assist with converting a single-instance database installation to an Oracle RAC database. The first of these, rconfig, is a command-line utility. Oracle Enterprise Manager Cloud Control database administration option, Convert to Cluster Database, provides a GUI-based conversion tool. The following sections describe how to use these conversion tools:
Configuration Changes During Oracle RAC Conversion Using rconfig
Converting Databases to Oracle RAC Using rconfig or Oracle Enterprise Manager
Converting Databases to Oracle RAC Using Oracle Enterprise Manager
Note:
Before you start the conversion, back up your existing database; you should take a backup of your database before starting any major change.