NonStop S-Series System Expansion and Reduction Guide

Glossary
G-Series Common Glossary
Glossary-106
System Code (SC)
System Code (SC). See TNS code space.
system code. A logically distinct part of the HP NonStop™ Kernel operating system that
consists of operating-system procedures shared by all processors.
system configuration database. The database file on the $SYSTEM.ZSYSCONF
subvolume that contains configuration information for all system objects that can be
configured by the Subsystem Control Facility (SCF). Configuration information for all
system objects that can be configured during system generation is contained on the
$SYSTEM.SYS
nn subvolume. See also configuration file and SYSnn subvolume.
system console. An HP-approved personal computer used to run maintenance and
diagnostic software for HP NonStop S-series servers. New system consoles are
preconfigured with the required HP and third-party software. When upgrading to the
latest RVU, software upgrades can be installed from the HP NonStop System Console
Installer CD. System consoles communicate with NonStop S-series servers over a
dedicated local area network (LAN) or a nondedicated (public) LAN. System consoles
configured as the primary and backup dial-out points are referred to as the primary and
backup system consoles, respectively.
system enclosure. An enclosure for system components. Processor enclosures and I/O
enclosures are both system enclosures. Contrast with peripheral enclosure
.
system engineer (SE). See service provider.
system entry point table (SEP table). A table used on TNS systems that stores the XEP
entry value for each TNS operating system procedure entry point.
system expansion. The process of making a target system larger by adding enclosures to
it. The enclosures being added can be either new enclosures or enclosures from a
donor system. Contrast with system reduction
.
system generation. The process of creating an operating system to support a particular
system configuration and release version update (RVU).
system image disk (SID). A disk copy of the HP NonStop™ Kernel operating system
produced during system configuration. The DISKGEN utility copies operating system
files to the SID.
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.