System Generation Manual for G-Series RVUs

Glossary
System Generation Manual for G-Series RVUs—523407-001
Glossary-12
system code
system code. A logically distinct part of the NonStop Kernel operating system that consists
of operating-system procedures shared by all processors.
system console. An TSM workstation configured as the primary or backup dial-out point.
The TSM workstation configured as the primary dial-out point is called the primary
system console. The TSM workstation configured as the backup dial-out point is called
the backup system console.
system generation. The process of creating an operating system to support a particular
system configuration and software RVU.
system image disk (SID). A disk copy of the NonStop Kernel operating system produced
by the SYSGENR program. The DISKGEN utility copies operating system files to the
SID.
system image list. A list within the CONFLIST file produced by the SYSGENR program
that shows processes and memory use for each processor.
system image tape (SIT). A tape that can be used to perform a system load on a system if
the system subvolume has become corrupted on both $SYSTEM disks. The tape
contains a minimum set of software necessary to bring up and run the system. Use
the SIT only for disaster recovery; it is not needed for normal system load. Contact the
Global Customer Support Center (GCSC) before loading the system from a SIT; many
additional steps are required to restore your system to working order. See also tape
load.
system interrupt vector (SIV). A NonStop Kernel operating system data structure that
contains the addresses of interrupt handlers, parameters passed to interrupt handlers
by special interrupt microcode, and other interrupt processing information.
system library. A logically distinct part of the NonStop Kernel operating system that
consists of user-callable library procedures and kernel procedures.
system load. (1) To start the system; to load the NonStop Kernel operating system image
into the memory of a processor. (2) RELOAD. (3) The process of loading the operating
system. A system load changes a system from an inactive to an active (or operational)
state by loading software that establishes communication between the operating
system and configured system peripherals.
system process. (1) A privileged process that comes into existence at system-load time
and exists continuously for a given configuration for as long as the processor remains
operable. (2) A NonStop Kernel operating system process, such as the memory
manager, the monitor, and the input/output (I/O) control processes. The files containing
system processes are invoked by ALLPROCESSORS paragraph entries.
system terminal. See system console.
TACL. See HP Tandem Advanced Command Language (TACL).