In a clustered environment, some database manager instance configuration and administration operations require related cluster configuration changes. The DB2® High Availability Feature (HA) Feature enables the database manager to automatically request cluster manager configuration changes whenever you perform certain database manager instance configuration and administration operations.
To enable the database manager to perform required cluster configuration for database administration tasks, you must configure the instance for high availability by using db2haicu to create a cluster domain for the instance. For more information, see: Configuring a clustered environment using DB2 High Availability Instance Configuration Utility (db2haicu).
When you perform the following database manager instance configuration and administration operations, the database manager automatically performs related cluster manager configuration for you:
When the database manager coordinates the cluster configuration changes for database administration tasks listed, you do not have to perform separate cluster manager operations.