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

Glossary
Virtual Hometerm Subsystem (VHS) Manual—429311-001
Glossary-9
Subsystem Programmatic Interface (SPI)
Subsystem Programmatic Interface (SPI). A set of procedures, associated definition files,
and conventions used to define message-based interfaces between management
applications and the subsystems they manage.
subsystem version number. A 16-bit integer representing the software release version of
a subsystem. The subsystem version number is a field of the subsystem ID.
SYSGEN. A program that is run against a CONFTEXT file (NonStop Kernel system
configuration) to generate a runable version of the NonStop Kernel operating system
that can be loaded into a processor. SYSGEN is usually invoked by INSTALL. See
INSTALL.
TACL. See Compaq Tandem Advanced Command Language.
Compaq Tandem Advanced Command Language (TACL). The Compaq product that is
both the standard NonStop Kernel command interpreter and a language consisting of
functions, macros, and routines that allows you to build your own commands.
token. A distinguishable unit in an SPI message. A token has two parts: an identifying code
(or token code) and a token value. For command and response messages, a token
normally represents a parameter to a command, an item of information in a response,
or control information for the subsystem. For event messages, a token normally
represents an item of information about an event or about the event message itself.
Transaction Monitoring Facility (TMF). The Compaq software product that provides
transaction protection, database consistency, and database recovery.
ViewPoint. An extensible interactive Compaq application for managing operations. It allows
a system or a network to be controlled from a single terminal. It includes several block-
mode display screens for events, a block-mode display for system or network status, a
conversational TACL screen, and a facility called Define Process to maintain sessions
with multiple subsystems at the same time.