To facilitate diagnosis of errors that require the viewing of storage dumps or control blocks, both the base control program and JES2 components exploit the interactive problem control system (IPCS). When diagnosing a problem, IPCS panels provide you the opportunity to continue the diagnostic process through the base control program and into selected JES2 data areas.

IPCS is a menu-driven facility that lets you interactively select control blocks that you need to examine. Selected control blocks are formatted, displayed, and available for printing. (See z/OS JES2 Diagnosis for a discussion of IPCS-JES2 support.)