NonStop S-Series System Expansion and Reduction Guide

Table Of Contents
Glossary
G-Series Common Glossary
Glossary-97
signal mask
signal mask. The set of signals that are currently blocked from delivery to a specific
process.
signal reference grid. A series of conductors, constructed of pure or composite metals (for
example, copper) with good surface conductivity. A superior signal reference grid is
installed on the subfloor of a computer room and connected to the raised-floor
structure to establish constant and equal potential for all equipment in the computer
room that is connected to it.
Simple Network Management Protocol (SNMP). An asynchronous request-response
protocol used for network management. SNMP originated as a means for managing
Transmission Control Protocol/Internet Protocol (TCP/IP) and Ethernet networks. OSM
and TSM packages can include an SNMP-compliant interface for communication
between the system console and HP NonStop™ S-series server.
single-high ServerNet adapter. A ServerNet adapter that occupies only the upper half of a
ServerNet adapter slot in an HP NonStop™ S-series server. Contrast with double-high
ServerNet adapter.
single-high stack. A stack that includes a base, a frame, and one system enclosure.
Contrast with double-high stack
.
single-mode fiber-optic (SMF) plug-in card (PIC). A plug-in card (PIC) for the modular
ServerNet expansion board (MSEB) and I/O multifunction (IOMF) 2 customer-
replaceable unit (CRU) that supports the single-mode fiber-optic (SMF) interface.
single-mode fiber-optic (SMF) ServerNet cable. A fiber-optic cable that allows only one
mode to propagate. SMF ServerNet cable has a small-diameter core for optimized
long-distance transmission. See also multimode fiber-optic (MMF) ServerNet cable
.
single-wide plug-in card (PIC). A small-form-factor plug-in card (PIC) that occupies one
PIC slot within a customer-replaceable unit (CRU). See also double-wide plug-in card
(PIC).
sinusoidal. A waveform that can be mathematically expressed by the sine function.
SIT. See system image tape (SIT).
site update tape (SUT). One or more tapes that contain each target system’s site-specific
subvolume and various products. Each product contains a softdoc and a complete set
of files. A SUT is delivered with every new HP NonStop™ S-series system and can be
ordered whenever a new release version update (RVU) of the system software is
available. A full SUT contains the current RVU of the HP NonStop Kernel operating
system and all product software that has been ordered with it. A partial SUT contains a
subset of products for the current RVU.
SIV. See system interrupt vector (SIV).