DB2 High Availability Instance Configuration Utility (db2haicu) startup mode

The first time that you run DB2® high availability instance configuration utility (db2haicu) for a given database manager instance, db2haicu operates in startup mode.

When you run db2haicu, db2haicu examines your database manager instance and your system configuration, and searches for an existing cluster domain. A cluster domain is a model that contains information about your cluster elements such databases, mount points, and failover policies. You create a cluster domain using DB2 high availability instance configuration utility (db2haicu).

When you run db2haicu for a given database manager instance, and there is no cluster domain that is already created and configured for that instance, db2haicu will immediately begin the process of creating and configuring a new cluster domain. db2haicu creates a new cluster domain by prompting you for information such as a name for the new cluster domain and the hostname of the current machine.

If you create a cluster domain, but do not complete the task of configuring the cluster domain, then the next time you run db2haicu, db2haicu will resume the task of configuring the cluster domain.

After you create and configure a cluster domain for a database manager instance, db2haicu will run in maintenance mode.