Advanced Topics › How You Activate New Features with ACTIVATE FEATURE

How You Activate New Features with ACTIVATE FEATURE

New features can be dynamically activated using the ACTIVATE FEATURE command. This command prevents the need for a global shutdown and control file format. The ACTIVATE FEATURE command works similar to the ACTIVATE COMPATLEVEL command. The biggest difference is that new FEATURES are not tied to a release boundary and their activation is optional.

Specify the compatibility level using:

• The MIMINIT FEATURE statement, which you specify in the MIMINIT member of the MIMPARMS data set.
• The ACTIVATE FEATURE command, which you issue to activate a new feature.

The MIMINIT FEATURE statement denotes which features should be activated at startup. The FEATURE value must be the same on all systems in the CA MIM complex.

Example 1: Using FEATURE with active systems

1. Ensure that CA MIM has all necessary PTFs or Releases installed containing the Feature you wish to activate. This must be true on all systems.
2. Enter F MIM,ACTIVATE FEATURE=featurename (on one system only)

   MIM0684I ACTIVATE FEATURE=featurename has been scheduled
   MIM0619I ACTIVATE FEATURE=featurename accepted
   MIM0620I ACTIVATE FEATURE=featurename in progress
   MIM0621I ACTIVATE FEATURE=featurename complete
   

3. Update the MIMINIT statement in the init member with FEATURE=featurename

Example 2: Using ACTIVATE FEATURE with inactive systems

In this example:

• CA MIM is up and running on SYSA and SYSB with no Features active.
• SYSC is currently down and FREED.

The ACTIVATE FEATURE command expects all systems that are coded on the DEFSYS statement to be active. Use the FORCE option on the ACTIVATE command.

For example, if you entered the ACTIVATE FEATURE command without the FORCE option, you would see the following messages:

F MIM,ACTIVATE FEATURE=featurename 
MIM0067 COMMAND ACTIVATE 
MIM0628E ACTIVATE command aborted; all defined systems not active 

CA MIM rejected the command, because CA MIM is not active on SYSC. To avoid the rejection, append the FORCE operand:

F MIM,ACTIVATE FEATURE=(HYPERSTAR,FORCE) 
Command ACTIVATE
MIM0684I ACTIVATE FEATURE=featurename has been scheduled
MIM0619I ACTIVATE FEATURE=featurename accepted
MIM0620I ACTIVATE FEATURE=featurename in progress
MIM0621I ACTIVATE FEATURE=featurename complete

The next time CA MIM is started on SYSC, start CA MIM with MIMINIT FEATURE=featurename.