A Guide to JES3 to JES2 Migration

Why JES?

This chapter presents arguments for technical professionals and managers about why today JES2 is a better option than JES3 not only because of financial issues (JES3 requires another license fee and JES2 does not), but also because most JES3 customers successfully migrated to JES2. It also shows that the migration process can be easy and low risk.

This chapter includes the following topics:

•1.1, “Introduction” on page 4

•1.2, “Job Entry Subsystem” on page 4

•1.3, “JES2 availability” on page 5

•1.4, “JES2 job management” on page 8

•1.5, ...