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

• Configuring Oracle Database Vault
  OUI installs Oracle Database Vault by default when you install the Oracle RAC software, but you must register Oracle Database Vault with the Oracle RAC database and create database user accounts before you can use it.
• Configuring Oracle Database Security Settings
  Use Oracle Database Configuration Assistant (DBCA) commands to change security settings after installation.
• Configuring Oracle Label Security
  After installation, you must configure Oracle Label Security in a database before you use it.
• 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
  If your Oracle RAC database uses files that are external to the database, then locate the external files on shared storage that is accessible to all nodes. Each node should use the same mount point to access the file.