The following sections describe halt and shutdown procedures
for Integrity servers and OpenVMS I64.
Halting
the System to Recover from Hangs and Crashes If your system hangs and you want to force a crash, go to
the MP command mode prompt (MP:CM>) if MP is available
on your system, enter the tccommand, and confirm, as shown in the following example:
MP> cm
MP:CM> tcExecution of this command irrecoverably halts all system processing and
I/O activity and restarts the system.
Type Y to confirm your intention to restart the system (Y/[N]) Y
The tc command forces a crash dump. You can reset the machine
(without forcing a crash) by entering the RS command at the MP:CM> prompt.
Alternatively, when the operating system controls the console,
enter Ctrl/P. The next step taken by the system depends on whether
XDELTA was loaded.
If XDELTA was
loaded, the system enters XDELTA after you enter a Ctrl/P. The system
displays the instruction pointer and current instructions. You can
force a crash from XDELTA by entering ;C as in the following example:
$
Console Brk at 8068AD40
8068AD40! add r16 = r24, r16 ;; (New IPL = 3)
;C
If XDELTA was not loaded,
entering Ctrl/P causes the system to respond with the "Crash?
(Y/N)" prompt. Type "Y" to cause the
system to crash and bring you eventually to EFI. If you type any
other character, the system continues.
Shutting Down the
System Before you shut down the operating system, decide if you want
it to reboot automatically or if you want to enter console-mode
commands after the shutdown completes.
You can perform the following three types of shutdown operations:
An orderly shutdown with SYS$SYSTEM:SHUTDOWN.COM
(see
Orderly Shutdown )
Orderly Shutdown The
SHUTDOWN.COM procedure shuts down the system while performing maintenance
functions such as disabling future logins, stopping the batch and
printer queues, dismounting volumes, and stopping user processes.
To use the SHUTDOWN.COM command procedure, log in to the SYSTEM
account, enter the following command, and press Return:
$@SYS$SYSTEM:SHUTDOWN
For more information about the SHUTDOWN.COM command procedure, refer
to the HP OpenVMS System Manager's Manual, Volume 1: Essentials.
Emergency Shutdown
with OPCCRASH.EXE If you cannot perform an orderly shutdown with the SHUTDOWN.COM
procedure, run the OPCCRASH.EXE emergency
shutdown program. To run the OPCCRASH.EXE program, log in to the
SYSTEM account, enter the following command, and press Return:
$RUN SYS$SYSTEM:OPCCRASH
For more information about the OPCCRASH program, refer to the HP OpenVMS System Manager's Manual, Volume 1: Essentials.
HP OpenVMS Version 8.2 Upgrade and Installation... 
Setting Up, Booting, and Shutting Down HP Integrity... 
