Technical data

Starting Up and Shutting Down the System
4.8 Shutting Down the System
SHUTDOWN message on AVALON, from user SYSTEM at _AVALON$OPA0: 12:10:00.20
AVALON will shut down in 0 minutes; back up 12:30. Please log off node AVALON.
MONTHLY PREVENTIVE MAINTENANCE
17 terminals have been notified on AVALON
%SHUTDOWN-I-SITESHUT, The site-specific shutdown procedure will now be invoked.
%SHUTDOWN-I-STOPUSER, All user processes will now be stopped.
%SHUTDOWN-I-REMOVE, All installed images will now be removed.
%SHUTDOWN-I-DISMOUNT, All volumes will now be dismounted.
%%%%%%%%%%% OPCOM, 16-MAY-2000 12:09:42.30 %%%%%%%%%%%
Message from user System on AVALON
_AVALON$OPA0:, AVALON shutdown was requested by the operator.
%%%%%%%%%%% OPCOM, 16-MAY-2000 12:10:02.44 %%%%%%%%%%%
Logfile was closed by operator _AVALON$OPA0:
Logfile was SYS$SYSROOT:[SYSMGR]OPERATOR.LOG;8
%%%%%%%%%%% OPCOM, 16-MAY-2000 12:10:32.20 %%%%%%%%%%%
Operator _AVALON$OPA0: has been disabled, username SYSTEM
SYSTEM SHUTDOWN COMPLETE
On VAX systems, the following message is also displayed:
USE CONSOLE TO HALT SYSTEM
Halt the system after you see this message.
4.8.2 Understanding the Order of Shutdown Events
The following events occur as the shutdown proceeds. The procedure displays the
corresponding messages on the terminal.
1. At decreasing time intervals, SHUTDOWN.COM broadcasts, to all users on
the system, a message requesting users to log out.
2. SHUTDOWN.COM defines the system logical name SHUTDOWN$TIME
to be the absolute time of shutdown. For example, if you execute
SHUTDOWN.COM, and at 12:00 you specify the value 10 in response
to the first question, SHUTDOWN defines the logical name to be 12:10
on that day. To see if a shutdown is in progress or to determine the
actual time of shutdown, you can enter the command SHOW LOGICAL
SHUTDOWN$TIME. This feature is useful if you miss a shutdown broadcast
message.
3. At 6 minutes or less before system shutdown, the terminal from which you
invoked SHUTDOWN becomes an operator’s console. SHUTDOWN disables
all future nonoperator logins and shuts down the DECnet network if it is
running. At this point, users logged in to the system with the SET HOST
command lose their sessions.
4. One minute before shutdown, SHUTDOWN.COM stops batch and output
execution queues and stops the queue manager.
5. At the absolute time of shutdown, SHUTDOWN.COM invokes the site-specific
shutdown command procedure SYS$MANAGER:SYSHUTDWN.COM, if you
requested it.
6. SHUTDOWN.COM stops all remaining user processes; however, system
processes continue. Ancillary control processes (ACPs) might delete
themselves when their mounted volumes are finally dismounted.
7. On multiprocessor systems, SHUTDOWN.COM stops the secondary
processors.
8. SHUTDOWN.COM removes all installed images.
4–26 Starting Up and Shutting Down the System