enable

The srvctl enable command enables the specified object so that it can run under Oracle Clusterware for automatic startup, failover, or restart. The Oracle Clusterware application supporting the object may be up or down to use this function. The default value is enable. If the object is already enabled, then SRVCTL returns a message advising you that the object is enabled. Enabled objects can be started, and disabled objects cannot be started.

When you run the enable command, the object is enabled and available to run under Oracle Clusterware for automatic startup, failover, or restart. Additionally, you can run the srvctl start command on an enabled object. If you specify -instance instance_name or -node node_name, then SRVCTL only enables the object on the specified instance or node.

If you do not specify -instance instance_name or -node node_name, then the enable action applies to the object that you specified, globally, on all nodes in the cluster and also removes any per-node enable settings. Any object you enable globally is also enabled on any nodes you add to the cluster in the future.

Enabling an object globally is different from enabling an object, individually, on each node in the cluster. For example, if you enable a database on several nodes, individually, in a cluster, then, when you run the srvctl start database command, the database starts only on nodes where the database is enabled. If, however, you enable the database globally, then the srvctl start database command starts the database on all nodes on which it is configured to run.