SEGMENT

PSF for z/OS: User's Guide

SEGMENT

PSF for z/OS: User's Guide
S550-0435-04

SEGMENT

Specifies that part of the output for a job is to be spooled to print while the job is still running, or specifies that different segments of a job are to be printed simultaneously on different printers. This parameter is optional and can be used only with line data, not with MO:DCA-P data.

You can specify the SEGMENT parameter in a DD statement, as follows:

SEGMENT=page-count

The value is:

page-count: Specifies the number of pages to be printed in this segment of the output data set. When the page-count is reached, JES prints that number of pages and begins counting the next segment of pages; it continues counting and printing until the remainder of the data set is printed.

Example:

This example shows how to print a large data set in segments of 100 pages each. When JES writes 100 pages to an output data set, the segment is scheduled for printing, and JES begins the second segment of 100 pages. The process continues until the entire data set is printed.

//DD1 DD SYSOUT=A,SEGMENT=100

Notes:

SEGMENT is supported only on JES2 systems. You might use SEGMENT when you need to print a large job but do not want to monopolize a single printer for a long time.
Using the SEGMENT parameter with conditional processing produces unexpected results, because conditional processing is not supported across data-set boundaries. The SEGMENT parameter causes a data set to be broken into what JES considers separate data sets, which cause conditional processing to stop at the end of the first segment (data set).

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