Details of the migration
In this part, we describe the migration steps and considerations. These chapters address the numerous things that you need to consider if you are interested in replacing JES3 with JES2. An obvious difference is that the JES3 JECL is different from JES2 JECL. Therefore, you need to consider how you would identify and then replace all the JES3 JECL statements with alternatives that would provide the same net effect in a JES2 environment. Appendix A, “Sample JES3 exit to analyze JECL usage” on page 227 includes a JES3 exit ...
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