MPE/iX Glossary of Terms and Acronyms (32650-90887)

62 Chapter1
Glossary of Terms
monitor system activity, respond to resource requests, and send messages
to users' terminals. The console (and most of its associated privileges and
responsibilities) may be transferred to another logical device with the
CONSOLE command.
system control panel A panel on the computer, containing control switches and status
indicator lights.
system crash See crash.
system-defined files The files defined by MPE and made available to all users to
indicate standard input or output devices, special temporary files, and files
opened for output that do not perform an actual write operation.
system directory A directory maintained by MPE that records the name, group, and
account of each permanent file on the system. The directory contains the
size of each file, its location on the disk, who may access it, and other
information.
system disk The disk volume, mounted as logical device 1. It contains MPE, I/O
configuration information, the accounting structure and file directory, and
utilities and subsystems. It also contains an area reserved for virtual
memory and may be used to store user files.
system domain See system volume.
system event log See system logging.
system failure An internally detected error from which recovery is not possible. Rather
than continue to operate, risking data integrity, the operating system halts
the computer.
system file directory A directory maintained by MPE that records the name, group, and
account of each permanent file on the system. The directory contains the
size of each file, its location on the disk, who may access it, and other
information.
System generator (SYSGEN) The MPE/iX utility used to create or modify system and
I/O configurations; add, remove, and replace program files and boot files;
replace system libraries; generate a full system backup, and create a boot
tape to bring up an MPE/iX system with the new configuration. Equivalent
to MPE V/E SYSDUMP and INITIAL.
system halt The condition of MPE following a system shutdown or system failure,
indicated by no response at the system console or to any user command.
system image See system configuration.
system loader A piece of software that brings a program into memory and binds it to
addresses before execution.
system load tape A system load tape, also referred to as a boot tape, contains the system
load utilities, base system files, and user files. It is generated with the
system generator (SYSGEN) utility. Equivalent to the MPE V/E coldload
tape.
system logging The MPE/iX system logging facility records details of system resource