ATM Configuration and Management Manual

Glossary
ATM Configuration and Management Manual—522307-003
Glossary-3
Class-2 CRU
Class-2 CRU. A customer-replaceable unit (CRU) that might cause a partial or total system
outage if the documented replacement procedure is not followed correctly. Customers
replacing Class-2 CRUs should have either three or more months of experience
replacing NonStop S-series CRUs or equivalent training. Customers must be able to
use the tools needed for the replacement procedure and must protect components
from electrostatic discharge (ESD).
Class-3 CRU. A customer-replaceable unit (CRU) that probably will cause a partial or total
system outage if the documented replacement procedure is not followed correctly.
Customers replacing Class-3 CRUs should have either six or more months of
experience replacing NonStop S-series CRUs or equivalent training. Customers must
be able to use the tools needed for the replacement procedure, must protect
components from electrostatic discharge (ESD), and must understand the
dependencies involved in NonStop S-series CRU-replacement procedures, such as
disk-path switching. Replacement by a service provider trained by HP is
recommended.
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.
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.
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 subsystem. The combination of data communications hardware and
software processes that function together as an integrated unit to provide services and
access to wide and local area networks.
Compaq TSM package. A software product for NonStop S-series servers that provides the
information needed to perform functions such as querying resources and testing,
provides notification of problems on the system, and allows local or remote access to
the system for service and maintenance. TSM performs the same role as that of the
HP Maintenance and Diagnostic System, Syshealth, and the Remote Maintenance
Interface (RMI) on earlier NonStop systems.
configuration. (1) The arrangement of enclosures, system components, and peripheral
devices into a working unit. (2) The definition or alteration of characteristics of an
object.
configuration file. In G-series release version updates (RVUs), one of the following files:
CONFBASE, CONFIG, one or more saved configuration files named CONFxxyy, and