Technical data

Starting Up and Shutting Down the System
4.8 Shutting Down the System
Procedure Purpose
For More
Information
OPCCRASH.EXE An emergency shutdown program. Run the
OPCCRASH emergency shutdown program if
you are unable to perform an orderly shutdown
with SHUTDOWN.COM.
Section 4.8.5
Shutdown using
console commands
Emergency shutdown commands. Use
these console shutdown commands only if
OPCCRASH.EXE fails.
Section 4.8.6
4.8.1 Performing an Orderly Shutdown with SHUTDOWN.COM
Use SYS$SYSTEM:SHUTDOWN.COM to shut down the system in an orderly
fashion. See Section 4.8.2 for the order of shutdown events.
Do not modify SHUTDOWN.COM. To perform site-specific operations during
shutdown, see Section 4.8.3.
Ordinarily, you shut down the system from the SYSTEM account, which includes
all privileges by default. To execute SHUTDOWN.COM, you must have either the
SETPRV privilege or all of the following privileges:
AUDIT
CMKRNL
EXQUOTA
LOG_IO
NETMBX
OPER
SECURITY
SYSNAM
SYSPRV
TMPMBX
WORLD
You can cancel a shutdown without any side effects by pressing Ctrl/Y before
SHUTDOWN.COM displays the following message:
%SHUTDOWN-I-SITESHUT, The site-specific shutdown procedure will now be invoked.
If you press Ctrl/Y after this display, certain system components might have
already been shut down, and you will need to recover manually. For example, you
might have to manually restart processes, mount disks, or reboot the system.
How to Perform This Task
1. Log in to the system manager’s account (SYSTEM), or any privileged account,
and enter the following command:
$ @SYS$SYSTEM:SHUTDOWN.COM
This command invokes the orderly shutdown procedure. The procedure
prompts you with a series of questions and messages. The default responses
appear in brackets at the end of each question. Press Return to select the
default response.
2. The system displays the following question:
How many minutes until final shutdown [0]?
4–22 Starting Up and Shutting Down the System