Understand the groups and environment settings for the Oracle Real Application Clusters (Oracle RAC) installed configuration.

• Understanding the Configured Environment in Oracle RAC
  Oracle NETCA and Oracle DBCA configure your environment to meet the requirements for database creation and Oracle Enterprise Manager discovery of the databases.
• Understanding Operating System Privileges Groups
  Review this information for system privileges required for Oracle Database or Oracle Automatic Storage Management (Oracle ASM) administration.
• Understanding Time Zone Settings on Cluster Nodes
  Oracle RAC requires that all cluster nodes have the same time zone setting.
• Understanding the Server Parameter File for Oracle RAC
  Oracle Database creates an SPFILE, during database creation, either in an Oracle ASM disk group or a cluster file system in the location that you specify.
• About ORATAB Configuration for Oracle RAC
  Oracle creates an entry for each Oracle RAC database in the oratab configuration file.
• Database Components Created Using Oracle DBCA
  Understand the database components that Oracle Database Configuration Assistant (Oracle DBCA) creates.
• Managing Undo Tablespaces in Oracle RAC
  Oracle Database stores rollback or undo information in undo tablespaces. To manage undo tablespaces, Oracle recommends that you use Automatic Undo Management.
• About Initialization Parameter Files
  Oracle recommends using the server parameter file (SPFILE) for storing Oracle Database initialization parameters.
• Oracle Net Services Configuration for Oracle RAC Databases
  You can access an Oracle RAC database using a client and server configuration or through one or more middle tiers, with or without connection pooling.
• Performance Features of Oracle Net Services and Oracle RAC
  Oracle RAC databases provide the important benefits of connection load balancing and failover.
• Oracle Net Services Configuration Files and Parameters
  Review this information to understand the Oracle Net Services configuration files and parameters for an Oracle RAC database.