A programme for teams planning to move from JES3 to JES2. It covers the differences between the two job entry subsystems, migration planning, JES2 initialisation, converting JECL and job classes, operator command changes, spool and scheduling considerations, parallel testing and cut-over with fallback. Learners finish with a practical migration plan and the confidence to run JES2.
Detailed curriculum available on request — tap Enquire and we'll send you the full module-by-module breakdown.
Full curriculum — unlocks when you enrol
Compare JES3 and JES2 architecture, functions and terminology
Plan a migration with inventory, risks and timeline
Configure JES2 initialisation parameters and spool
Convert JES3 JECL and job class definitions to JES2 equivalents
Map operator commands and procedures between JES3 and JES2
Handle job scheduling and workload-management changes
Test in parallel and prepare cut-over and fallback plans
Like what you see? Enquire now and we'll walk you through the full program.
- Working knowledge of z/OS operations and JCL
- Experience with JES3 or JES2 is helpful
- Awareness of batch scheduling in the installation
- Suited to system programmers, operators and batch-scheduling teams
LAB ACCESS (provided by Ez-Learn)
- Dedicated z/OS lab environment with personal user ID; access details issued at course start
- Guided hands-on exercises mapped to every module
STUDY MATERIAL (Ez-Learn LMS with Lifetime Access)
- Course slides, lab guides
- Practice exercises
- Reference notes
- Assessments for every Module
- Interview Preparation Questions
- Sample resumes (On Request)
- Mock Interviews (On Request)
Upcoming batches
21 Nov 2026
online Sat-Sun (10am-12noon)
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