CICS VSAM Transparency for z/OS, Version 1.2


Automated mapping facility

There are three steps in the automated mapping facility.

Step 1
Is a batch job or ISPF option that analyzes the VSAM cluster for the file to be migrated. Information such as the record length, key length and position, alternate indexes, and number of records are extracted into the CICS® VT mapping tables.
Step 2
Uses ISPF dialogs to analyze the copybook for the file and relate it to the VSAM record on a field by field basis. Column names are generated from copybook field names. You can change column names and attributes in the ISPF dialogs.
Step 3
Generates the mapping data for the base cluster and each alternate index, and produces the DDL to create the appropriate DB2® tablespace, table and index objects. The runtime drivers (DIM and DDM) are generated in this step.
There are commands to enable you to suspend and resume mapping, and to save the DDL for processing at a later stage if required.


Concept topic


Last updated: February 8, 2013 20:43:59