ServerNet Cluster 6780 Planning and Installation Guide (G06.24+, H06.03+)

Glossary
ServerNet Cluster 6780 Planning and Installation Guide—527301-004
Glossary-9
external system area network manager process
(SANMAN)
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 with a CONFTEXT file, OSIMAGE file, and configuration database that
matches your order. Your system is shipped with this version installed in the system
subvolume $SYSTEM.SYS00.
Fast Ethernet ServerNet adapter (FESA). A single-ported ServerNet adapter that supports
100-megabit per second (Mbps) and 10-Mbps Ethernet data transfer rates on a
NonStop S-series server. The FESA installs directly into an existing Ethernet port, and
one FESA is supported per system enclosure.
fault tolerance. The ability of a NonStop system to continue processing despite the failure
of any single software or hardware component within the system.
FESA. See Fast Ethernet ServerNet adapter (FESA).
Fiber Optic Extension (FOX). Refers to two products, FOX II and ServerNet/FX, which
allow you to create high-speed (up to 4 megabytes/second) networks of as many as 14
systems connected by dual fiber-optic cables.
fiber-optic ServerNet cable. A ServerNet cable using a medium for data transmission that
conveys light or images through glass or plastic fibers. Fiber-optic cables (light guides)
are a direct replacement for conventional coaxial cable and wire pairs. NonStop
S-series servers support two types of fiber-optic ServerNet cables: single-mode and
multimode. See also multimode fiber-optic (MMF) cable
and single-mode fiber-optic
(SMF) cable.
field-programmable gate array (FPGA). A programmable integrated circuit that can be
customized to perform specific functions.
field-replaceable unit (FRU). A unit that can be replaced in the field only by qualified
personnel trained by HP and cannot be replaced by customers. A unit is classified as a
FRU because of safety hazards such as weight, size, sharp edges, or electrical
potential; contractual agreements with suppliers; or national or international standards.
See also customer-replaceable unit (CRU).
file name. A unique name for a file. File names for disk files normally have at least two parts
(the disk name and the file name); an example of a file name on a PC is B:MYFILE. In
the Guardian environment on a NonStop S-series system, disk file names include a
disk volume name, a subvolume name, and a file identifier. An example of such a file