Token-Ring Adapter Installation and Support Guide

Glossary
Token-Ring Adapter Installation and Support Guide—426955-001
Glossary-4
network
network. Two or more computer systems (nodes) connected so that they can exchange
information and share resources. See wide area network (WAN), and local area network
(LAN).
NonStop™ Himalaya S-series servers. The set of servers in the Himalaya range of servers
having product numbers beginning with the letter “S.” These servers implement the
ServerNet architecture and run the Compaq NonStop™ Kernel operating system.
operator message. A message, intended for an operator, that describes a significant event on
a NonStop™ Himalaya S-series system. An operator message is the displayed-text form
of an Event Management Service (EMS) event message. See also event message
.
owner. In the SLSA subsystem, the LAN Monitor (LANMON) process that monitors and
manages a ServerNet addressable controller (SAC). See also ServerNet addressable
controller (SAC).
persistence. The capability of a generic process to restart automatically if it was stopped
abnormally.
physical interface (PIF). The hardware components that connect a system node to a
network.
PIF. See physical interface (PIF)
.
port. (1) A data channel that connects to other devices or computers. (2) A connector to
which a cable can be attached. The system transmits and receives data or requests
through ports on ServerNet adapters and processor multifunction customer-replaceable
units (PMF CRUs). A port is also called a connector. (3) The entrance or physical access
point (such as a connector) to a computer, multiplexer, device, or network where signals
are supplied, extracted, or observed.
primary processor. The processor that is designated at system generation time as “owning”
the controller connected to the two separate processors of a Compaq NonStop™ Kernel
operating system. The primary processor is the processor that has direct control over the
controller. See also backup processor
.
protocol. A set of rules used by processes or devices for exchanging data.
SAC. See ServerNet addressable controller (SAC)
.
SCF. See Subsystem Control Facility (SCF)
.
server. (1) An implementation of a system used as a stand-alone system or as a node in an
Expand network. (2) A combination of hardware and software designed to provide
services in response to requests received from clients across a network. For example, the
NonStop™ Himalaya range of servers provides transaction processing, database access,
and other services. (3) A process or program that provides services to a client or a
requester. Servers are designed to receive request messages from clients or requesters;
perform the desired operations, such as database inquiries or updates, security
verifications, numerical calculations, or data routing to other computer systems; and