Pre-submitter task (PSU)

This task is in charge of the JCL tailoring needed to implement the Restart and Cleanup function. It adds the EQQCLEAN pre-step to the JCL in order to:
  1. Execute a step restart.
  2. Execute a clean up.
PSU interacts with the following other tasks:
  • GS
  • WSA
  • FL
  • SU

The task is queue-driven. Its SSX queue is the PSUQ.

Requests to PSU are sent via DQE of type "PSU":
Type=APL
Apply logic: tailor JCL to do clean up and/or step restart
Type=CLN
Stand-alone clean up: create a new job to execute clean up