JES2 for Systems Programmers
3 Days

This course provides the fundamentals of JES2 to I/T Professionals. It is intended to provide the student with the understanding to control, customize and administer the JES2 subsystem in a z/OS environment.


  • System programmers who need an understanding of JES2.
Introduction to JES2 Concepts
  • Introduction to JES2 Checkpoint and Spool operations
  • Examine JES2 job execution phases
  • JES2 and Workload Manager (WLM)
  • JES2 system configuration options (including Poly-JES).
  • Explore JES2 and JES3 conceptual differences.
JES2 Initialization
  • JES2 start-up options
  • JES2 procedure and specification requirements
  • Dynamic allocation of PROCLIB and PARMLIB specifications
  • Backup JES2 procs
  • Introduction to JES2 initialization statements
Controlling JES2 Processes
  • JES2 device assignments
  • Internal reader facility
  • Specifying PROCLIBS
  • Job selection criteria and job initiation
  • Member affinity and initiator management
  • Output management
  • Print/Punch phase and output routing
Spool Volumes and Operation
  • Spool volume allocation
  • Spool management
  • Spool offload facility
JES2 Checkpoint Processing
  • Checkpoint sizing and placement
  • Checkpoint configuration considerations
  • Checkpoint reconfiguration dialogues
  • Recovering from Multi-Access Spool (MAS) failures
  • JES2 Checkpoint and the coupling facility
Remote JES2 Configurations: RJE/NJE
  • Network Job Entry (NJE) definitions
  • Networking considerations and topology
  • Remote Job Entry (RJE) definitions
  • SNA vs BSE definitions


  • Introduction to JES2 Concepts
  • JES2 Initialization
  • Controlling JES2 Processes
  • Spool Volumes and Operation
  • JES2 Checkpoint Processing
  • Remote JES2 Configurations: RJE/NJE

Our JES2 experts can cover any and all topics on this subject—topics can be added or deleted per Client’s needs.

Workstations are needed for this session.


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