Advanced Topics › Product Termination Considerations › WAITSTATE and SHUTDOWN WAIT

WAITSTATE and SHUTDOWN WAIT

To preserve data integrity, there are situations where you may need to shut down CA MIM in a disabled wait state. Two parameters have been added to CA MIM to control and define how CA MIM enters a disabled wait state:

• The MIMINIT WAITSTATE statement defines the conditions under which CA MIM will enter a disabled Wait state. You can also set the value for this keyword in the PARM field in the CA MIM startup JCL PROC sample.

  Important: Use this parameter with careful consideration. Specifying any value other than NEVER (default) puts CA MIM into a disabled state that abruptly halts the entire system. Under some circumstances, this is a good choice, because it is the only way to ensure the integrity of shared data.

  You should choose a value other than NEVER only when GDIF is activated. All other CA MIM components (TPCF, GTAF, EDIF, ECMF, and ICMF) can all be stopped safely, and do not require the wait state to ensure data integrity.

  Note: The SETOPTION SHUTDOWN command will NOT be honored when WAITSTATE is set to anything other than NEVER.

• The SHUTDOWN WAIT command sets the status of the local system to a freed state, then puts the system into a disabled wait state.

For more information about these keywords, see the CA MIM Statement and Command Reference Guide.