NonStop S-Series Planning and Configuration Guide (G06.25+)

Glossary
HP NonStop S-Series Planning and Configuration Guide—523303-015
Glossary-93
ServerNet dump
ServerNet dump. To copy the memory of a processor to disk by using the ServerNet
fabrics.
ServerNet end device. See ServerNet device.
ServerNet expansion board (SEB). (1) A connector board that plugs in to the backplane to
allow one or more ServerNet cables to exit the rear of the enclosure. The SEBs and
ServerNet cables allow processors in one group to communicate with processors in
another group. Each SEB provides either the ServerNet X fabric or the ServerNet Y
fabric for a group. (2) A collective term for both SEBs and modular SEBs (MSEBs)
when a distinction between the two types of SEBs is not required.
ServerNet extender module (SEM). Equipment that increases the distance that ServerNet
signals can be transmitted over fiber-optic cables to 40 kilometers. If multimode
fiber-optic (MMF) and single-mode fiber-optic (SMF) ServerNet cables are used in the
same system, the SEM converts MMF signals so that they can be transmitted by SMF
ServerNet cables and converts SMF signals so that they can be transmitted by MMF
ServerNet cables.
ServerNet/FX adapter. A ServerNet adapter that logically extends the ServerNet X and Y
fabrics to other clusters in a Fiber Optic Extension (FOX) ring by using fiber-optic lines.
Two 6740 ServerNet/FX adapters are used, one for the X ring and one for the Y ring.
ServerNet/FX 2 adapter. A ServerNet adapter that logically extends the ServerNet X and Y
fabrics to other clusters in a Fiber Optic Extension (FOX) ring by using fiber-optic lines.
Two 6742 ServerNet/FX 2 adapters are used, one for the X ring and one for the Y ring.
ServerNet ID. A unique identifier for an addressable unit on a ServerNet communications
network. A unit can have multiple ServerNet node IDs. This ID is used for routing. Each
packet has a source ServerNet node ID and a destination ServerNet node ID. A pair of
processors operating in duplex mode share one ServerNet node ID.
ServerNet LAN Systems Access (SLSA) subsystem. A subsystem of the HP NonStop™
Kernel operating system for configuration and management of ServerNet local area
network (LAN) objects in G-series release version updates (RVUs).
ServerNet link. Two unidirectional point-to-point communication paths, one in each
direction, connecting a router to a ServerNet node or another router. Each ServerNet
link contains a transmit channel and a receive channel.
ServerNet memory interface (SMI). An application-specific integrated circuit (ASIC) that
provides the interface between the microprocessor and the two ServerNet fabrics and
main memory.
ServerNet node. A system in a ServerNet cluster. See also node.
ServerNet node number. A number that identifies a member system in a ServerNet cluster.
The ServerNet node number is a simplified expression of the 6-bit node-routing ID that
determines the node to which a ServerNet packet is routed. The ServerNet node