Defining and customizing TSO/TCAM time sharing

The following is an overview of the steps for defining TSO/E to TCAM:

Write a message control program (MCP) procedure to start TSO/TCAM and include it in a procedure library. For more information, see Writing an MCP procedure to start TSO/TCAM.
IBM® provides a default MCP, which you can tailor to suit your installation's needs. For more information, see ACF/TCAM Version 2 Base Installation Guide.

If you plan to use the Session Manager, see Setting up a Session Manager environment about changes you may need to make to the MCP to support a Session Manager environment.
Optionally, you can create SYS1.PARMLIB member IKJPRM00 (or an installation-defined alternate member) to override the default values used to start TSO/TCAM. For more information, see .
If you plan to use the Session Manager, see SYS1.PARMLIB changes about changes you may need to make to the SYS1.PARMLIB member to support a Session Manager environment.

Before a user can log on, TCAM must be active in the system and the terminal I/O controller (TIOC) must be initialized. The initialization of the TIOC completes the initialization for the time sharing subsystem and allows TCAM to accept logon commands and pass them to the TIOC for processing.

To start TCAM, the system operator enters the following START command. In the command, tcam is the name of a procedure that executes the TCAM MCP.

start tcam

After TCAM has been started, the system operator enters the MODIFY command to activate the TIOC as a subtask of TCAM:

modify tcam,ts=start

If you use a SYS1.PARMLIB member other than IKJPRM00 to override the parameters used to start TSO/E, the operator must include the member name on the MODIFY command. For example, if you want to use SYS1.PARMLIB member IKJPRM01, the operator must enter the following command:

modify tcam,ts=start,ikjprm01

For more information about IKJPRM00, see .

To terminate all time sharing users' connections with the system, the system operator must issue the MODIFY command as follows:

modify tcam,ts=stop

For more information about the START and MODIFY commands, see .