JES3

You might choose to enable JES3 as an alternative to the base JES2 element. It also accepts the submission of work for the BCP. Major JES3 functions and design features include:

• The interpretation of job control language (JCL) statements
• The disposition of output
• A single system image
• Workload balancing
• Deadline scheduling
• Dependent job control
• Control flexibility

JES3 differs from JES2 in two main processing areas:

• JES3 exercises centralized control over its job processing functions. JES2 exercises independent control. With JES3, a single, global processor controls job, device, and workflow for all processors in a multi-processor environment.
• JES3 does pre-execution of job setup. JES2 does not do this.