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

Glossary
Virtual Hometerm Subsystem (VHS) Manual—429311-001
Glossary-8
status item
status item. A measurable condition in a system or network that is displayed on one line of
a Network Status Summary display screen. Each such item is separately chosen and
configured for display through the Status Item Configuration screen.
status server. A server that gathers data for the ViewPoint Network Status Summary
screen. Compaq provides a default status server; you can write and configure
additional status servers to augment or replace the functions of the default status
server. Typically, a status server issues programmatic commands to subsystems to find
out how many or how much of some resource is available—for example, how many
network nodes are available or how many terminals are running.
subject. In event management, a device, process, or other named entity about which a
given event message is concerned.
subsystem. A process or collection of processes that manages a cohesive set of objects.
Each subsystem has a process (in some cases, this process is the entire subsystem)
through which applications can request services by issuing commands defined by that
subsystem. See management process.
Subsystem Control Facility (SCF). An interactive interface for configuring, controlling, and
collecting information from Compaq data communications subsystems.
Subsystem Control Point (SCP). The management process through which management
applications, including SCF, manage Compaq data communications subsystems. See
management process.
subsystem definitions. The set of token definitions available for use with a particular
subsystem that supports an SPI programmatic interface.
subsystem environment. The Compaq subsystems and customer applications that use an
SPI management interface to communicate with management applications and with
the DSM management services. See operations environment.
subsystem ID (SSID). A data structure that uniquely identifies a subsystem (including
whether it is a Compaq subsystem or a subsystem you write). It consists of the
subsystem owner, the subsystem number, and the subsystem version number.
subsystem number. An integer that identifies a subsystem. Each subsystem has an owner,
generally the company that supplies the subsystem.
subsystem object name. A name by which an object is known to a subsystem; subsystem-
object names are defined in a DNS database.
subsystem owner. A value identifying the company that supplies a particular subsystem. It
consists of a name of up to eight characters, blank-filled on the right. The owner for all
subsystems supplied by Compaq is COMPAQ.