Validating the IMS environment before enabling dynamic definition for MODBLKS resources

Before you enable dynamic resource definition for MODBLKS resources with either a resource definition data set (RDDS) or an IMSRSC repository, validate the IMS environment by performing the following steps.

Procedure

  1. Verify DRD is not yet enabled, meaning either:
    • The MODBLKS keyword is not specified anywhere.
    • The MODBLKS=OLC keyword is specified in either the DFSCGxxx member or the COMMON_SERVICE_LAYER section of the DFSDFxxx member of the IMS PROCLIB data set.
  2. Verify that IMS is stabilized in your test environment and the IMS.MODBLKS data set is complete and working properly.
  3. Verify that the IMS in which you are enabling DRD has a Common Service Layer (CSL) defined. Specify the CSL parameters in either:
    • The COMMON_SERVICE_LAYER section of the DFSDFxxx member in the IMS PROCLIB data set
    • The DFSCGxxx member in the IMS PROCLIB data set

    If you specify values in both the COMMON_SERVICE_LAYER section of the DFSDFxxx member and in the DFSCGxxx member, the CSL values in the DFSCGxxx member override the values in the COMMON_SERVICE_LAYER section of the DFSDFxxx member.

  4. Verify that your in-house procedures that use the online change process for the resources defined in the IMS.MODBLKS data set have been copied and stored, and you have replacement procedures that use DRD commands.