Use policy-based management and server pools features of Oracle Clusterware for effective management of Oracle database and applications.

• About Policy-Managed Clusters and Capacity Management
  Oracle Clusterware uses policy-based management of servers and resources used by Oracle databases or applications.
• About Server Pools
  When Oracle Clusterware is installed, two server pools are created automatically: Generic and Free.
• Server Pools and Server Categorization
  Manage servers using server pools by identifying servers distinguished by particular attributes
• Server Pools and Policy-Based Management
  With policy-based management, database administrators specify the server pool (excluding Generic or Free) in which the database resource runs.
• How Server Pools Work
  Server pools divide the cluster into groups of servers hosting singleton and uniform database services and applications.