Previous Topic: Running CA MIM in Mixed-Level ModeNext Topic: CA MIM Product Maintenance


COMPATLEVEL Considerations

CA MIM 12.0 is only compatible with external systems that are running with COMPATLEVEL=11.81, 11.9, or 12.0. Bringing the compatibility maintenance to the current CA MIM release can be required, before installing CA MIM 12.0.

The following CA MIM PTFs provide support for COMPATLEVEL=11.81:

To determine the current COMPATLEVEL value of your active CA MIM tasks, use the F MIM,DISPLAY MIM INIT command.

The simplest method of upgrading to 12.0 is by changing COMPATLEVEL=12.0 in the INIT member. Then start CA MIM 12.0 on all systems with a control file and checkpoint file format. However, this change requires a global CA MIM outage. The following examples show alternate upgrade methods that avoid the global outage.

Example for upgrading from CA MIM 11.9 to CA MIM Release 12.0:

No special CA MIM 11.9 PTFs are required for CA MIM 11.9 before upgrading to 12.0. Follow the standard COMPATELVEL upgrade process. For more information, see the CA MIM Statement and Command Reference Guide and the CA MIM Programming Guide.

Example: Upgrading to CA MIM for z/OS Release 12.0 with VM systems in the MIMplex requires the following steps:

  1. Issue F MIM,DISPLAY INIT to confirm all systems in the MIMplex are running at COMPATLEVEL 11.81.
  2. Install RO51703 on all CA MIM VM 11.5 systems.
  3. Install CA MIM 12.0 on all MVS systems.
  4. Issue F MIM ACTIVATE COMPATLEVEL=11.82.

Note: CA MIM VM does not support COMPATLEVEL=11.9 or 12.0.

Note: For more information about the CA MIM ACTIVATE COMPATLEVEL process, see the CA MIM Programming Guide and the CA MIM Statement and Command Reference.

Example for upgrading from CA MIM 11.8 to CA MIM 12.0:

  1. Confirm CA MIM 11.8 is running on all systems with COMPATLEVEL=11.8.
  2. Install RO38458 on all systems, it can be rolled out one system at a time.
  3. F MIM,ACTIVATE COMPATLEVEL=11.81
  4. Shut down 11.8 and start 12.0 with COMPATLEVEL=11.81. This change can be done on one system at a time, a global shutdown is not required.
  5. After MIM 12.0 is up and running on all systems, enter:
  6. F MIM,ACTIVATE COMPATLEVEL=11.9
  7. F MIM,ACTIVATE COMPATLEVEL=12.0