Activating a Service Policy

You can also activate a service policy from your application by using the IWMPACT macro. The caller must provide the name of the service policy to be activated in the SERVICE_POLICY=service_policy parameter. The specified policy must exist in the service definition installed on the WLM couple data set.

A single policy can be activated at any one time, and the policy is activated synchronously.

A caller can optionally request the name of the system where another policy activation is taking place by specifying SYSTEM_NAME=system_name. Therefore, if a previous IMWPACT request is being processed and a new IWMPACT request is issued, the new request is rejected with an appropriate return and reason code. This occurs regardless of whether the requests were issued on the same system or different systems in the sysplex. Control is not returned to the caller until the policy has been activated on all systems in the sysplex or for some reason the policy activation could not be completed.