HP 3000 Manuals HP 3000 Manuals
Chapter 9 Halting System Activity
A system shutdown does not imply turning off power to the computer
hardware. Instead, system shutdown means stopping the computer's
operating system. Stopping system activity makes the computer
inaccessible to users. You would need to shut down the system for
maintenance, for a physical move, for changing the system configuration,
or for security reasons.
If done properly, a shutdown preserves all system and user files. Before
the shutdown occurs, backlogged reports can be printed, or they can be
saved to tape and replaced when the system is running again.
The shutdown procedure usually consists of several steps, including the
following:
* telling users well in advance of a planned shutdown
* warning users a few minutes before the shutdown
* preventing anyone from starting a new job or session, or printing
new reports
* clearing the backlog of reports before the shutdown (This step is
unnecessary unless you need the space that these reports are
using.)
* answering any console requests
* shutting open communication lines
* aborting remaining jobs and sessions
* entering the =SHUTDOWN command
The next several sections describe procedures associated with shutting
down a system. Read through the remainder of this chapter before
attempting a shutdown based on these instructions. Become familiar with
the commands and options used in each process. Examine the processes for
areas that you may need to customize for your system.