EPTRACE Manual

Glossary
EPTRACE Manual—528811-002
Glossary-13
SYSnn subvolume
SYSnn subvolume. A subvolume on the $SYSTEM volume where the new version of the
HP NonStop™ operating system image is located. Also located on the SYSnn
subvolume is system-dependent and release version update (RVU)-dependent
software. nn is an octal number in the range %00 through %77.
system. All the processors, controllers, firmware, peripheral devices, software, and related
components that are directly connected together to form an entity that is managed by
one HP NonStop™ operating system image and operated as one computer.
System Code (SC). See TNS code space.
system code. A logically distinct part of the HP NonStop™ operating system that consists
of operating system procedures shared by all processors.
system entry-point (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 TACL.
system generation. The process of creating an operating system to support a particular
system configuration and release version update (RVU).
System Library (SL). See TNS code space.
system library. A logically distinct part of the HP NonStop™ operating system that consists
of user-callable library procedures and kernel procedures.
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) An HP NonStop™ 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. (3) A part of
a single copy of the HP NonStop operating system with Open System Services (OSS)
interfaces. A system process does not have an OSS process ID.
TACL. See HP Tandem Advanced Command Language (TACL).
TAL. See HP Transaction Application Language (TAL).
TIM. See HP NonStop™ Technical Library (NTL).
TNS. Refers to fault-tolerant HP computers that support the HP NonStop™ operating
system and are based on microcoded complex instruction-set computing (CISC)
technology. TNS systems run the TNS instruction set. Contrast with TNS/E.
TNS accelerated mode. A TNS emulation environment on a TNS/R or TNS/E system in
which accelerated TNS object files are run. TNS instructions have been previously