Relationship to the JOB ADDRSPC parameter

When ADDRSPC=REAL: Code a REGION parameter to specify how much central storage (also called real storage) the job needs. If you omit the REGION parameter, the system uses the default.

When ADDRSPC=VIRT or ADDRSPC is Omitted: Code a REGION parameter to specify how much virtual storage the job needs. If you omit the REGION parameter, the system uses the default.