| Prevent a transaction program (TP) from running |
APPC/MVS utility or dialog to deactivate a TP through its profile |
All new conversations for one specific TP |
Rejecting inbound Allocate requests for the TP |
| Stop a currently running TP |
CANCEL command |
The currently running instance of a TP, and
its partner TPs |
Abnormally ending the TP |
| STOP command |
Same as for CANCEL |
Abnormally ending the initiator address space in which the
TP is running |
| Stop a class of TPs |
SET ASCH command, with ASCHPMxx that contains
CLASSDEL with WORKQ=DRAIN |
All TPs defined to a specific class |
Quiescing running or queued TPs, and deleting
the class after the running and queued TPs have ended |
| SET ASCH command, with ASCHPMxx that contains CLASSDEL with
WORKQ=PURGE |
Same as for CLASSDEL with WORKQ=DRAIN |
Rejecting all queued TPs, allowing only the currently running
TP to finish its processing, and deleting the class after the one
TP has ended |
| Stop a logical unit (LU) |
SET APPC command, with APPCPMxx that contains
LUDEL |
All inbound or outbound conversations for the
LU |
Rejecting new conversations, but allowing active
or queued (that is, existing) conversations to continue processing
without interruption |
| VARY TERM command, followed by VARY INACT command |
All inbound or outbound conversations for the LU |
Rejecting new conversations and interrupting all TPs involved
in existing conversations that are processed through VTAM® |
| VARY INACT command, with the TYPE operand |
Same as for VARY TERM with VARY INACT |
Rejecting new conversations, and failing existing conversations
on the next APPC/MVS or CPI-C service that requires APPC/MVS and VTAM interaction. Not recommended,
because TPs waiting for an outstanding call to complete might hang
indefinitely. IBM® recommends
that you issue the VARY TERM command before issuing VARY INACT to
avoid hanging TPs. |
| Stop the ASCH address space |
CANCEL ASCH command |
All conversations for TPs scheduled through the APPC/MVS scheduler |
Immediately ending all running or queued TPs scheduled through
the APPC/MVS transaction scheduler. Outbound Allocate requests from
address spaces not associated with ASCH can be processed only if a
NOSCHED system base LU exists. |
| Stop the APPC address space |
CANCEL APPC command |
All APPC/MVS work on this MVS system |
Immediately ending all APPC/MVS TPs, schedulers, servers, and
LUs |
| Stop VTAM |
HALT command |
All TPs, regardless of the operating system
on which they reside, that require VTAM services
to communicate |
Rejecting new conversations and interrupting
all TPs involved in existing conversations that are processed through VTAM |
| HALT QUICK command |
Same as for HALT |
Rejecting new conversations and failing existing conversations
that are processed through VTAM on
the next APPC/MVS or CPI-C service that requires APPC/MVS and VTAM interaction. If any TPs are
waiting for an outstanding APPC/MVS or CPI-C call, they might hang. |
| HALT CANCEL command |
Same as for HALT |
Same as for HALT QUICK, except that TPs waiting for outstanding
calls do not receive control again. |