System Startup, Configuration, and Shutdown Reference Manual (32650-90907)

Glossary
logoff
Glossary
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I/O dependent code (IODC) The portion of the
operating system software that contains I/O module
dependent data and code used by Processor
Dependent Code (PDC) in configuring the I/O
module and in booting the system.
I/O path The address of the interface hardware and
the physical path to reach a device. It is constructed
top down from where the device is physically
attached to the system. The path is determined by
the CIO adapter module number, the device adapter
(DA) slot number, and the device address.
job A method of submitting a single command to
process multiple operating system and utility
commands. Once submitted, the job executes
independently of the user’s session. Jobs are used to
compile source programs, modify files, or perform
other functions not requiring user interaction.
job limit A limit set to manage the number of jobs
executing on the system. The system manager or
operator can restrict system usage by reducing the
number of jobs allowed to run. If the LIMIT
command is used to set the job limit to 0 (zero), no
additional jobs can log onto the system.
keyword A word assigned a specific meaning by
the operating system, a subsystem, a computer
language, or a utility.
keyword parameters Words that have special
meaning to the command interpreter and are used to
modify the intent or effect of an MPE command.
Keyword parameters, unlike positional parameters,
may appear in any order after a command has been
entered on the command line. An entire keyword
parameter group, such as PASS=password, must be
separated from other keyword parameters by a
semicolon (;).
LAN 3000/XL LINK The hardware and
communications software needed to connect 900
Series HP 3000 machines to a network for
system-to-system communication.
LAN cables Cables used to connect the distributed
terminal controller (DTC) and the system.
LDEV number See logical device number.
library A file containing a set of procedures and
variables that can be accessed by programs.
Local Area Network (LAN) A computer network
confined to a single location. For example,
connecting two or more computer systems within a
single office together creates a LAN.
Local Area Network Interface Controller
(LANIC) A hardware card that fits into the
backplane of the HP 3000 system and provides a
physical layer for IEEE 802.3 local area networks.
local network The network to which the local node
belongs.
local node The system where you are physically
located and logged on, and at which you enter
commands.
locked state The status of an output spoolfile when
it is unavailable for printing.
lockword A word used as a security device on files.
A lockword can be assigned to a file when it is
created or renamed, and must be supplied to regain
access to the file. The word can be from one to eight
alphanumeric characters long and must begin with
an alphabetic character.
log file A file that maintains a record of events.
Each event is recorded in a separate log record, and
is correlated with the job or session causing the
event.
logging 1) The process of recording all system
modifications to a tape or disk file for the purpose of
recovery or accountability. If the system fails, the log
file can be used to restore the system to its state
prior to the failure. 2) The process used by DBCore
to record the activity of a DBEnvironment to enable
either rollback or rollforward recovery if necessary.
logging shutdown A shutdown marking the end of
the logging cycle. In most cases, it is performed just
prior to either system or database backup.
logical device (LDEV) A disk file, a set of disk
files, or a physical device associated with a data
stream between a host and a remote system.
logical device number A number assigned to all
hardware components of a computer system and
used for identification purposes.
logoff A method of terminating a session. To log off
the system, enter the BYE or EXIT command.