How do I get Oracle Real Application Clusters One Node (Oracle RAC One Node)?
Oracle RAC One Node is only available with Oracle Database 11g Release 2. Oracle Grid Infrastructure for 11g Release 2 must be installed as a prerequisite. Download and apply Patch 9004119 to your Oracle RAC 11g Release 2 home in order to obtain the code associated with RAC One Node. (this patch was released after 11.2.0.1 was released and is only available for Linux). Support for other platforms will be added with 11.2.0.2.