NonStop S-Series System Expansion and Reduction Guide

Glossary
G-Series Common Glossary
Glossary-33
external routing
external routing. The routing of packets over the external ServerNet fabrics; that is,
between systems (or nodes) in a ServerNet cluster. See also internal routing
.
external ServerNet fabrics. The fabrics that link systems in a ServerNet cluster. See also
internal ServerNet fabrics
.
external ServerNet X or Y fabric. The X or Y fabric that links systems in a ServerNet
cluster. See also internal ServerNet X or Y fabric
.
external system area network manager process (SANMAN). (1) A Guardian process
with the name $ZZSMN that provides management access to the external ServerNet X
and Y fabrics. (2) A Windows NT process that configures and maintains ServerNet
switches within a Windows NT cluster.
fabric. A complex set of interconnections through which there can be multiple and (to the
user) unknown paths from point to point. The term
fabric is used to refer to the X or Y
portion of the ServerNet communications network; for example, the X fabric.
factory-installed operating system. The version of the operating system image that HP
creates having a CONFTEXT configuration file, OSIMAGE file, and configuration
database that matches your order. Your system is shipped with this version installed in
the system subvolume $SYSTEM.SYS00.
fan. A component within an HP NonStop™ S-series system enclosure that circulates air
into the enclosure to help maintain optimal temperature. Each NonStop S-series
system enclosure contains two fans.
far gateway. A short code sequence that accomplishes the transition to privileged mode for
legitimate calls to callable procedures that are located in a different direct jump area.
Typically, SCr (system code, RISC) is the target area. See also direct jump area
, far
jump, and gateway.
far jump. A sequence of RISC instructions that permits crossing the boundaries of the
256-megabyte direct jump areas in virtual memory. Such sequences are necessary, for
example, when calling into system code from user code, because the two are located
in different direct jump areas. The sequence ends with a JR (Jump via Register) RISC
instruction.
fastLoad. An optimization that allows the loader to avoid reading symbols and binding
symbolic references when loading a program or dynamic-link library in an environment
equivalent to that of a previous load. See also preset
, cached bindings, and library
import characterization (LIC).
Fast Ethernet ServerNet adapter (FESA). A single-ported ServerNet adapter that supports
100-megabit/second (Mbps) or 10-Mbps Ethernet data transfer rates on an HP
NonStop™ S-series server. The 3863 FESA installs directly into an available I/O port.
fault tolerance. The ability of a computer system to continue processing despite the failure
of any single software or hardware component within the system.