Virtual Hometerm Subsystem (VHS) Manual (H06.03+)

Glossary
Virtual Hometerm Subsystem (VHS) Manual—429311-001
Glossary-2
DDL
DDL. See Data Definition Language.
Debug. Compaq debugger. Allows you to use code and data breakpoints and to view
variables by data space locations and offsets. Replaced by Inspect. See Inspect.
Distributed Systems Management (DSM). A set of software applications, tools, and
services that facilitates management of systems and networks. DSM products include
the Subsystem Programmatic Interface (SPI), the Event Management Service (EMS),
the Distributed Name Service (DNS), the DSM Template Services, the Subsystem
Control Facility (SCF) for data communications subsystems, and a set of management
applications including ViewPoint, Distributed System Management Solutions (DSMS),
and the DSM/Problem Manager (DSM/PM). DSM also includes SPI interfaces to the
management processes for various Compaq subsystems in addition to various other
tools that assist in the development of management applications.
Distributed Systems Management Application (DSMA). A term used to describe a
management application. See management application.
Distributed Systems Management Solutions (DSMS). A Compaq application package
with two interfaces, NetStatus and NetCommand, and an underlying management
service layer, Distributed Systems Network Management (DSNM), that you use to
monitor and control systems and networks from a single terminal. DSMS is particularly
useful for managing subsystems and their objects.
distributor. An EMS process that distributes event messages from event logs to requesting
management applications, to a collector on another node, or to printers, devices, or
files. See Event Management Service. See also consumer distributor, forwarding
distributor, and printing distributor.
DSM. See Distributed Systems Management.
EMS. See Event Management Service.
EMS standard definitions. The set of declarations provided by the Event Management
Service (EMS) for use in event management regardless of the subsystem. Any
application that retrieves tokens from event messages needs the EMS standard
definitions. Names of EMS standard definitions start with ZEMS.
enumerated type. A 16-bit signed data type that has one of a specified list of values with
designated meanings. The enumerated type is one of the standard token data types
defined by SPI; but the list of acceptable values and what they mean varies depending
on the token number and is defined by the subsystem.
event. A significant change in some condition in the system or network. Events can be
operational errors, notifications of limits exceeded, requests for action needed, and
so on.
event collector. An EMS process that collects all operator event messages generated in a
given system and files them in a file called an event log.