You must complete postinstallation tasks before you can use some Oracle Database features.

• Configuring Oracle Database Vault
  You must register Oracle Database Vault with Oracle RAC database and create database user accounts before you can use Oracle Database Vault feature.
• Configuring Oracle Database Security Settings
  Use Oracle Database Configuration Assistant (Oracle DBCA) commands to change security settings after installation.
• Configuring Oracle Label Security
  You must configure Oracle Label Security after Oracle RAC database installation to use Oracle Label Security feature.
• Configuring Oracle XML DB
  Oracle XML DB is a required component of the Oracle Database installation. However, you must manually configure the FTP and HTTP ports for Oracle XML DB.
• Configuring Storage for External Tables, Shared Files, or Directory Objects
  Store external tables, shared files, or directory objects on shared storage that is accessible to all cluster nodes.