Stopping Transaction Manager

You can use the /STOP DC command to prevent new users from logging on to VTAM® terminals. This command does not terminate existing sessions.

You can use the /STOP LINE and IDLE LINE commands to disable devices such as printers, spools, punches, disks, readers, and tapes. You can use the /PURGE TRAN or UPDATE TRAN START(SCHD) STOP(Q) command to prevent existing VTAM terminal users from entering new transactions.

To terminate a VTAM session, you can use one of the following commands, or you can wait for the end user to terminate the session.

/STOP NODE
/CLSDST NODE
VTAM VARY
/IDLE NODE
You can use this command if you already entered a /STOP DC or /CHECKPOINT command or you can wait for the end user to terminate the session.

Recommendation: Use the /CLSDST NODE command to terminate a VTAM session instead of the /STOP NODE command. The /STOP command requires that you subsequently issue a /START command before you or a user can initiate a session. You can initiate a session using the /OPNDST command.

To shut down VTAM, use the HALT NET command (abbreviated as Z NET). If you issue a Z NET command with no keywords, you terminate VTAM, and IMS permits no new logons, but existing sessions continue. The existing VTAM sessions must be ended by the terminal user, the VTAM operator, or the MTO. If you issue the Z NET,QUICK command, VTAM does not allow new sessions to be established or any additional input or output operations to take place, and IMS terminates existing sessions.