Open SCSI Integrator's Manual for NonStop S-Series Servers

Glossary
Open SCSI Integrator’s Manual for NonStop Servers—422988-002
Glossary-3
carrier
carrier. (1) A sheet-metal structure that allows a single-high ServerNet adapter to be installed
in a ServerNet adapter slot designed for a double-high ServerNet adapter. (2) An
electrical signal that carries data.
CCSA. See Common Communication ServerNet adapter (CCSA)
.
CE. Customer engineer. See service provider
.
central processing unit (CPU). Historically, the main data processing unit of a computer. A
a Himalaya system has multiple cooperating processors rather than a single CPU. See
also processor
.
channel. An information route for data transmission. See also ServerNet link
.
client. A software process, hardware device, or combination of the two that requests services
from a server. Often, the client is a process residing on a programmable workstation and
is the part of an application that provides the user interface. The workstation client might
also perform other portions of the application logic.
CLIP. See communications line interface processor (CLIP)
.
CME. See correctable memory error (CME)
.
CMI. See Communications Management Interface (CMI)
.
code segment. A segment that contains program instructions to be executed plus related
information. Code segments cannot be altered by an application program; they are read
from disk but never written back to disk.
cold load. A synonym for system load or load (in the case of single processor load). System
load or load is the preferred term in this and other NonStop system manuals. See system
load and load.
command. A demand for action by or information from a subsystem or the operation
demanded by an operator or application. A command is typically conveyed as an
interprocess message from an application to a subsystem.
command file. An EDIT file that contains a series of commands and serves as a source of
command input.
Common Communication ServerNet adapter (CCSA). A ServerNet adapter that provides
a Himalaya S-series integration platform for Signaling System Number 7 (SS7) protocol
communications.
communications line. A two-way link consisting of processing equipment, I/O devices,
protocol conventions, and cables that connect a computer to other computers.
communications line interface processor (CLIP). The major programmable device within
the ServerNet wide area network (SWAN) concentrator, providing link-level protocol