Enabling inter-region communication (APF authorization)

The master address space creates subordinate address space environments to scan primary databases, sort the index records that are built, and eventually, write the indexes. The process is coordinated by inter-region communication and requires the master address space to be non-swappable during the entire IMS Index Builder run.

To enable inter-region communication, APF authorizes the STEPLIB concatenation of the main IMS Index Builder job.

If the STEPLIB concatenation for IMS Index Builder is not correctly APF authorized, the IMS Index Builder MAS issues the following message, and processing stops with abend code S047:

IIUB104E APF AUTHORIZATION CHECK FAILED