z/VM: CP Commands and Utilities Reference - z/VM - IBM

SHUTDOWN
Responses
c. The new CP module must contain the same version of the checkpoint
(HCPCKP or HCPCKS) and warmstart (HCPWRM or HCPWRS) modules.
d. Any CP system volumes that are shared between the old and the new
system must have the same position in the CP_Owned statement in the
system configuration file.
Otherwise the automatic warmstart may fail and a hardware IPL with a FORCE
start must be performed.
6. When a SHUTDOWN is issued, the trace data for all active DEFERIO traces
will not be written.
7. All IPL parameters used with the IPLPARMS option will remain in effect until
they are changed with a subsequent SHUTDOWN REIPL command that
specifies the IPLPARMS parameter, or the CP nucleus is shut down, or a SET
IPLPARMS is issued.
8. If the REIPL option is used, some I/O subsystem features may not be available
if the system that is brought up on the re-IPL supports a superset of the
features supported by the system that was shut down. A full I/O reset is
necessary to support all the features. This can be performed only by using the
Load function on the processor’s hardware console. For example, the Parallel
Access Volumes feature of the 2105 DASD Subsystem may not be available on
re-IPL if the system that was shut down did not support that feature.
9. If none of the WITHIN, BY, and IMMEDIATE options are specified, and if the
default signal timeout interval is set, it is added to the CP shutdown interval and
the result is used to delay the shutdown and give guests an opportunity to
terminate. Refer to “SET SIGNAL” on page 1388 and “SET SHUTDOWNTIME”
on page 1387 for additional information about this behavior.
Response 1:
System shutdown may be delayed for up to interval seconds
is displayed when the command is accepted and there are guests that require time
to shut down. If a user other than the primary system operator issues the
SHUTDOWN command, this response is sent to both the command issuer and the
primary system operator.
Response 2:
SYSTEM SHUTDOWN STARTED
is displayed when the command is accepted and termination processing is in
progress. If a Class A user other than the primary system operator issues the
SHUTDOWN command, this response is sent to both the command issuer and the
primary system operator.
Response 3:
1436 z/VM: CP Commands and Utilities Reference
STARTING SYSTEM SHUTDOWN STEP name - description
is displayed for each step of the shutdown process as it proceeds. Each message
identifies the name of the step and a description of its function. On a 3270 terminal,
these messages are displayed on the top line of the screen, always showing the
last step that was initiated. On the system console (SYSC) device, the messages
are displayed one after another in line mode.