CA Dynam for VSE User Guide

Specifying the SET Command
Using Option S
Option code S will be ignored for CA SORT. The same file ID can be used
without special processing, because CA SORT opens the output file after the
input files are closed.
This option code causes CA Dynam/D to open the SORTOUT (or equivalent) file
to write over the SORTIN file if it exists. Otherwise the file will be allocated as
a normal SORTOUT file. With the IBM Sort/Merge, option code S can cause
problems and should be used with caution. For example, if the SORTOUT file
has a smaller block size than the SORTIN file, the SORTOUT file can exceed
the existing SORTIN file capacity. This causes the VSE message NO MORE
AVAILABLE EXTENTS to appear.
In addition, if multiple SORTIN files are processed, option code S should not be
specified unless the output from the SORT will fit within the extents for
SORTIN1.
Note: The IBM Sort/Merge performs extensive pre-open checking of SORTIN
files. This may require you to provide a resolved label record under some
conditions. If so, the DYNOPEN utility program can be used for this purpose.
For more information about DYNOPEN, see the chapter "Supporting Disk File
Management."
Specifying the SET Command
CA Dynam/D provides you with the SET Job Control command. This command
lets you control various options of the CA Dynam/D system through Job
Control. It can be entered either through the system operator's console or
along with other JCL in an input job stream. The command affects only the
partition in which it is entered. Both permanent and temporary options are
available with the SET command.
The permanent option (PERM) sets values that will remain in effect until the
next IPL or until changed by another SET command with the permanent
option. (PERM is also the default for the SET command.)
You can override the permanent values on a job-by-job basis by using the
temporary option (TEMP). Any options specified with the TEMP option of the
SET command remain in effect until either another SET command is entered,
which changes the previous specifications, or END-OF-JOB. The values then
revert to the permanent settings or null values.
4–48 User Guide