Step 3: Customizing the z/OS configuration and runtime variables

The z/OS configuration variables are used when generating the working data sets, to initialize the runtime variables that are used by the Operational Decision Management for z/OS JCL. The working data sets contain the customized JCL required to configure the selected topology.

In the SHBRPARM(HBRINST) member, related variables are grouped by execution environment or feature. Customize the variables that are general to all execution environments.

• Customize the CICS® variables only if you are using CICS to run your z/OS applications (COBOL or PL/I applications).
• Set the ++DB2HLQ++ variable only if you plan to use this type of persistence.
• If HBRWORKPATH is 35 characters or less in length, the value can be used by all working data sets. However if the value exceeds 35 characters, you must manually update the customized members in SHBRJCL where the value has been inserted into the JCL. If you do not do this, the job might not contain valid JCL when the update job is run to create the working data sets.