Pathway/XM System Management Manual

Managing a Pathway/XM Environment
Compaq NonStop™ Pathway/XM System Management Manual—426761-001
7-32
Shutting Down a Pathway/XM Environment
Shutting Down a Pathway/XM Environment
You can shut down your Pathway/XM environment by stopping all Pathway/XM
objects collectively with the STOP PATHWAY command.
You can choose from the following three options: ORDERLY, ABORT, and
IMMEDIATE. Each option provides a different level of shutdown, as described in
Table 7-4
and in the subsections that follow.
The STOP PATHWAY command process automatically stops objects in the following
order: TERM objects, TCP objects, SERVER processes under its control, and finally
the PATHMON processes.
Once you specify a STOP PATHWAY command:
•
All TCPs begin shutdown (shutting down TERM objects and then themselves) in
parallel.
•
New work is disallowed. For example, all CONTROL commands are invalid. (For
a complete list of commands that are disabled during shutdown, see STOP
PATHWAY on page 11-92.)
•
The PATHMON process logs the start and completion of STOP PATHWAY; it
does not log status messages during shutdown.
Table 7-4. Effects of STOP PATHWAY Options (page 1 of 2)
ORDERLY ABORT IMMEDIATE
TERM objects Stopped Aborted Aborted
1
Server processes Closed Closed Stopped
2
LCS processes Closed Closed Stopped
TCPs (local) Stopped—after
stopping all TERM
objects under TCP’s
control and closing
all server processes
Stopped—after
aborting all TERM
objects under TCP’s
control and closing
all server processes
Stopped
2
TCPs (external) and
LINKMON
processes
Notified of shutdown
request
3
Notified of shutdown
request
3
Notified of shutdown
request
3
PATHMON
processes
Stopped—if
shutdown completes
without errors
Stopped—if
shutdown completes
without errors
Stopped—if
shutdown completes
without errors
1. Because the TCP was stopped by a Guardian STOP procedure call, the terminals were aborted. Aborting a
TERM object means that transactions are not completed.
2. Indicates a potential Guardian STOP procedure call.
3. Once an external TCP or LINKMON processes notification of an impending PATHMON shutdown, that
TCP or LINKMON process no longer sends data or requests to server classes under the control of the
PATHMON process that is shutting down.
4. If the transaction is protected by the Transaction Management Facility (TMF), TMF aborts the transaction
and resets any data that was changed. If the transaction is not protected by TMF, the effects of the aborted
transaction are unknown.