Task 6—Updating the program list table shutdown assembly


Summary: In this task, you will update the program list table shutdown (PLTSD) assembly.

This task is optional. The COPSHUT program processes statistics for the Optimizer at shutdown. If you intend to print or reset statistics at CICS shutdown, you must update the program list table shutdown (PLTSD) assembly with an entry for the COPSHUT program.

A COPSHUT entry is required under the following conditions:

  • When you want to print or reset statistics at shutdown or at intervals for your site

Individual transaction and terminal statistics are not maintained across CICS warm starts. Only summary statistics are maintained.

  • When you want to maintain accurate statistics across CICS warm starts for your site

This condition applies only if your site warm-starts CICS Interval Control. For more information about printing screens and resetting statistics, see Using.

  • When the Optimizer is shut down and is still quiescing when a CICS shutdown is performed

The PLTSD entry lets you stop any Optimizer WAITs that are outstanding. When the Optimizer is shut down from a PLTSD, a WTO message is sent to the operator’s console (MVS only) and to the programmer’s log.

Place the COPSHUT entry before the DFHDELIM entry in the PLTSD if the following conditions apply:

  • The COPOPT or COPRINT files are remote.
  • You want to print statistics to a 32xx printer.
  • You are using CICS/ESA or later.

To update the PLTSD entry

The sample PLTSD entry is contained in member/book COPPLTSD of hilevel.BBSAMP:

DFHPLT TYPE=ENTRY,PROGRAM=COPSHUT

For CICS to execute a PLTSD at CICS shutdown, the IMMEDIATE keyword for CEMT or CSMT must not be used.

To print on VTAM printers at CICS shutdown

To print on a VTAM printer at CICS shutdown, the printer must be bound to CICS. The only certain way to do this is to specify the following entries in the terminal control table (TCT):

CONNECT=AUTO (not the default)

RELREQ=(NO,NO) (default)

You must also place an entry for DFHPLTSD in the program processing table (PPT).

If there is a problem with the printer (such as running out of paper), CICS will not shut down. Manual intervention is then required to shut down CICS.



 

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