Supporting On Demand Business Applications with the IBM Problem Determination Tools (APA, DT, DT with Advanced Facilities, FA, File Export, FM, WS)

Chapter 6. Introduction to File Export 117

6.4.1 Creating a repository

The first thing to note when creating a repository is the great number of data sets that File

Export will generate. To avoid overcrowding the available disk space, limit the number of

repositories.

Figure 6-8 gives an idea of the number of generated data sets per repository.

Figure 6-8 DSLIST of File Export repository

The repository contains records layouts: MVS, DB2, and IMS. Items of the same type can be

linked together in a global definition called a storage name.

You can start by loading data definitions and link them later in a storage. This process for

MVS data will be described in the following paragraphs.

For DB2 data, start by creating a storage name and then specifying the table definitions you

want to load from the DB2 catalog.

For IMS data, start by creating a storage name and then specifying the segment definitions

you want to load from the IMS library.

6.4.2 Load a data definition from a COBOL copybook

Start the File Export Repository management function, open the repository, display the list of

the existing data descriptions.

You can exclude from the display the default record types corresponding to data definitions

loaded from a DB2 DBRMDLIB or an IMS DBDLIB.

The process is the same for a PL/I include.

118 Supporting On Demand Business Applications with the IBM Problem Determination Tools

To load a definition from a copybook, start the parser p on the command line, as shown in

Figure 6-9.

Figure 6-9 List of existing data descriptions

Specify where the copybook is stored, as shown in Figure 6-10.

Figure 6-10 Name and type of the data description to import

Chapter 6. Introduction to File Export 119

A temporary copy of the data description is displayed, as shown in Figure 6-11. You can make

modifications, such as commenting groups.

Figure 6-11 Modified COBOL copybook

Note that you must follow the syntax rules of the source language.

File Export imports the definition as a record layout, as shown in Figure 6-12.

Figure 6-12 Corresponding record layout in File Export

Note that the fields are listed in alphabetical order.