z/OS DLA discovery customization

The range and depth of z/OS® discovery can be controlled by a combination of four filtering directives that can be specified in the PARMMEM parameter file. The easiest way to customize discovery is to modify the sample filtering directive in the IZDCDEF default configuration file. This file is read by default for each discovery.

The filtering directives SET, DISC, FILT, BOOK, and DEBUG that are described in this section control which resources are discovered, which information is output, and how the information is output.

The SET directive is used to specify general options and values such as organization name, debug options, and output limits to be placed on resources that typically exist in large numbers. The SET LIMIT directive is used to help with performance which may be degraded when large numbers of resources are discovered.

The DISC directive is used to specify which resources you want to discover. Use this directive to limit discovery to CICS® or IMS only, for example, or to discover IMS database resources but not discover IMS program resources.

The FILT directive is used to limit the XML output. The input to the bulk load program is a file that contains an IDML-formatted XML document.

The FILES directive is used to read user-defined files associated with a subsystem. The FILES directive can also be used to read an Application Descriptor and associate the subsystems.

The BOOK directive is used to specify how the IdML output is stored. The IdML can be storage in a single book (member) named ZOSALL or split into multiple books, each named using the jobname or STC name of the discovered resource.

The DEBUG directive is used to set debug options.

Several sample members are provided in the hlq.SIZDSAMP library. The IZDCDEF member contains the default directive recommended for a typical discovery. Other books are described in Appendix D. Samples provided in hlq.SIZDSAMP.