Enabling DRD for MSC

Enable dynamic definition for MSC resources by specifying MSCRSCS=DYN in the MSC section of the DFSDFxxx member of the IMS PROCLIB data set.

Before you can enable dynamic resource definition for MSC resources, the Common Service Layer (CSL) must be enabled with at least the Structured Call Interface (SCI) and the Operations Manager (OM).

After you enable dynamic resource definition for MSC resources, you can create, modify, and delete MSC resources in an online IMS system by using IMS type-2 CREATE, UPDATE, and DELETE commands.

Any changes that are made to MSC resources dynamically are not saved across a cold start unless you code the changes to the MSC resources into stage-1 system definition macros or export the changes to the IMSRSC repository before the cold start occurs.

Procedure

To enable dynamic definition, perform the following steps:

  1. Enable MSC by specifying MSC=Y in the DFSPBxxx member of the IMS PROCLIB data set, or by defining at least one MSC link during IMS system definition.
  2. Specify MSCRSCS=DYN in the MSC section of the DFSDFxxx member of the IMS PROCLIB data set.
  3. Cold start IMS.
  4. Confirm that dynamic definition is enabled for MSC resources by issuing the QUERY MEMBER TYPE(IMS) command.
    When dynamic resource definition is enabled for MSC resources, the command output includes DYNMSC in the local attributes.