Abstract for MVS Data Areas Volume 2 (IAX - ISG)

MVS Data Areas information is for system programmers who diagnose and debug operating system and programming problems. It provides information for debugging installation-provided programs or diagnosing IBM-provided programs. The user of this information should have a strong working knowledge of the functions and logic of the operating system.

Data areas are sequenced alphanumerical by data area acronym. Each data area has up to four sections:
  • Programming Interface Information
  • Header
  • Data area map
  • Cross-reference (when the data area map is long enough)