Processing control by segmenting

To control the size of a sysout data set segment, code the SEGMENT parameter on a sysout DD statement. SEGMENT is supported in JES2 systems only.

When you code SEGMENT, you determine the number of logical line-mode pages to be written to a sysout data set. This allows you to print part of the output while a job is still executing, or to use multiple printers to print multiple segments.

   //DD1   DD  SYSOUT=A,SEGMENT=200

In this example, when the system writes 200 pages to a sysout data set, the segment is spun and a new segment is allocated.