NonStop S-Series Operations Guide (G06.24+)

Starting and Stopping the System
HP NonStop S-Series Operations Guide—522459-007
16-20
Preparing to Stop the System
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Following the SPOOLER DRAIN subcommand, the collectors allow current jobs to
finish but reject new opens with a file-system error 66 (device downed). When you
drain the spooler, each collector stops when it has no more open jobs. Each print
process finishes printing any active jobs and then stops. After all collectors and
print processes have stopped, the supervisor stops. The spooler enters the
dormant state, ready to be warm started.
•
Following the SCF CONTROL, DISK REFRESH command, all other disk I/O is
suspended. The amount of time a refresh operation takes to finish depends on the
amount of disk cache containing dirty pages in use at the time, and writing to disk
can take several minutes.
Before stopping the system, stop all processes and applications in this order:
1. Whenever possible, schedule system shutdowns in advance so that system users
are prepared. Send a display message alerting users of the shutdown.
2. Stop all user applications.
3. These applications must be stopped in this order:
a. If your system is equipped with Pathway, stop Pathway applications. At the
Pathway prompt:
= SHUTDOWN2, MODE ORDERLY
b. Stop Distributed Systems Management/Software Configuration Manager
(DSM/SCM) if it is running. At a TACL prompt:
1. Type this VOLUME command:
> VOLUME $DSMSCM.ZDSMSCM
2. Stop DSM/SCM:
> RUN STOPSCM
4. Stop communications lines, such as Expand lines.
5. Identify and stop any remaining processes that should be stopped individually:
a. Use the TACL PPD and STATUS commands to help you identify running
processes.
b. Use the TACL STOP command to stop running processes.
You must be aware of which processes must not be stopped. For example, some
TCP processes must not be stopped. System processes must not be stopped.
Generic processes configured to be persistent cannot be stopped.
6. Drain the spooler. At a TACL prompt:
> SPOOLCOM supervisor-name, SPOOLER, DRAIN
7. Stop the TMF subsystem. At the TACL prompt:
> TMFCOM STOP TMF