JCL Considerations

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JCL Considerations

In the discussion of each utility, the files required to run a utility are identified under the heading "JCL Considerations."

Additionally, z/OS JCL through CMS Commands present sample JCL for each utility by operating system.

Batch command facility JCL

In each JCL chapter, the basic JCL to execute the CA IDMS batch command facility (IDMSBCF) is presented first. IDMSBCF JCL must include definitions of the input and output files CA IDMS/DB needs to perform the requested operations. For each operating system, sample file assignments for these input and output files are presented in alphabetical order by utility.

Note: For more information about using the CA IDMS Batch Command Facility, see the CA IDMS Common Facilities Guide.

Operating system-specific JCL

Sample JCL for submitting utility statements and programs is presented in the following chapters:

SYSIDMS parameter file: The SYSIDMS parameter file is added to the JCL stream of batch jobs running in local mode or under the central version. You can use SYSIDMS parameters to specify:

Physical requirements of the environment, such as the DMCL and the database or dictionary to use at runtime
Runtime directives that assist in application execution, such as activating the IDMSQSAM facility
Operating system-dependent file information, such as overriding a block size for a file in a z/VSE environment

When executing utility statements through the batch command facility, you use SYSIDMS parameters, as appropriate, to specify database name, dictionary name, DMCL name, and other required information.

You should be familiar with SYSIDMS parameters and the function of the SYSIDMS parameter file before running CA IDMS utilities.

For a complete discussion of SYSIDMS parameters, see CA IDMS Common Facilities Guide.

IDMSLBLS procedure for z/VSE JCL

A procedure containing file assignments for CA IDMS dictionary and database files, disk journals, and the SYSIDMS parameter file for use in the CA IDMS/DB z/VSE environment is provided during the CA IDMS installation. A copy of this procedure appears in z/VSE JCL.

Only the file definitions for work files, SYSCTL files, and tape and archive journal files appear in the sample JCL in z/VSE JCL.

For more information and considerations when executing a utility statement under central version, see Central Version Considerations.