TCSACTN
The TCSACTN system initialization parameter specifies the required action that CICS® terminal control should take if the terminal control shutdown wait threshold expires.
- TCSACTN={NONE|UNBIND|FORCE}
- For details of the wait threshold, see the TCSWAIT system
initialization parameter. TCSACTN only takes
effect when TCSWAIT is coded with a value in
the range 1 through 99. This is a global default action. On a terminal-by-terminal
basis, you can code a DFHZNEP routine to override this action.
- NONE
- No action is taken. This can be overridden by DFHZNEP.
- To report hung terminals and not attempt to force-close them specify the TCSWAIT=mm (with an appropriate time interval) and TCSACTN=NONE system initialization parameters.
- To attempt to force-close some hung terminals, and only report others, specify the TCSWAIT=mm (with an appropriate time interval) and TCSACTN=NONE system initialization parameters, and code a DFHZNEP routine that selects the required terminals and sets TWAOCN on for them.
- UNBIND
- CICS terminal control attempts
to close the session by issuing a z/OS® Communications
Server VTAM® CLSDST and sending
an SNA UNBIND command to the hung terminal. This can be overridden
by DFHZNEP.
- To attempt to force-close all hung terminals specify the TCSWAIT=mm (with an appropriate time interval) and TCSACTN=UNBIND system initialization parameters.
- FORCE
- CICS terminal control attempts
to forceclose the CICS z/OS Communications Server ACB
if there are any hung terminals or parallel connection sessions. All CICS z/OS Communications
Server terminals and sessions are released and CICS normal shutdown continues. This parameter
will only take effect if all LU Type 6.2 parallel connections, if
any, have successfully completed CNOS close processing.
- To attempt to force-close the CICS z/OS Communications Server ACB if there are any hung terminals, specify the TCSWAIT=mm (with an appropriate time interval) and TCSACTN=FORCE system initialization parameters.