A Guide to JES3 to JES2 Migration

Customer experience case study

This chapter describes the experiences of a mid-sized business customer when they chose to migrate from JES3 to JES2.

This chapter includes the following topics:

•6.1, “Migration steps overview” on page 114

•6.2, “Planning and assumptions” on page 115

•6.3, “JES2 system design” on page 124

•6.4, “Educating stakeholders” on page 135

•6.5, “Removing and replacing JES3 exits” on page 137

•6.6, “Transforming JES3 special functions” on page 143

•6.7, “Transforming JCL and JECL” on page 150

•6.8, “Migrating system automation” ...