After you have installed Oracle Real Application Clusters, verify that the installation is correct. Perform this verification before you attempt to create your Oracle database. This verification does not verify that Real Application Clusters database instances can be started and stopped automatically.
Confirm that the owner, group, and mode of the $ORACLE_HOME/bin/oracle file are as follows:
# ls -l $ORACLE_HOME/bin/oracle
Confirm that the binary files for the Oracle listener exist in the $ORACLE_HOME/bin directory.
Go to Creating an Oracle Database.