Distributed Name Service (DNS) Management Programming Manual

Glossary
46958 Tandem Computers Incorporated Glossary–17
subsystem-control token; it determines under what conditions the subsystems will
continue command processing on the next object in a sequence if errors or warnings
occur. Compare with Response-control token.
Subsystem definitions. The set of declarations available for use with a particular
subsystem that supports a token-oriented programmatic interface. See also Definition
files, and compare with SPI standard definitions.
Subsystem descriptor. A six-word data structure that includes a subsystem ID and
version identifier. The subsystem descriptor is an argument to the SSINIT procedure.
See also Subsystem ID.
Subsystem ID. A data structure that uniquely identifies a subsystem (including whether
it is a Tandem subsystem or a subsystem you write). It consists of the name of the
owner of the subsystem (the company that provides it), a subsystem number that
denotes the subsystem within the scope of its owner, and a subsystem version number.
The subsystem ID is an argument to most of the SPI procedures.
Subsystem name. The name that denotes a particular subsystem; an externalization of
the subsystem ID. Examples are Pathway, TMF, and AM3270.
Subsystem number. An integer that identifies a subsystem within the context of its
owner. The subsystem owner, the subsystem number, and the subsystem version
number make up the subsystem ID that uniquely identifies a subsystem.
Subsystem object. An object controlled by a Tandem-supplied, third-party, or user-
written subsystem.
Subsystem-object name. The name used by a Tandem-supplied, user-written, or third-
party subsystem, or by the Guardian 90 operating system, to refer to an object—for
instance, the Pathway name of a terminal or a SNAX name for a logical unit: TERM-
006 UNDER \TS.$PM, $LINE4.#LU3 UNDER \NY.$SSCP, or
\CENTER.$BOOKS.PLANS.OUTLINE.
Subsystem-object type. The classification of an object, as defined by a subsystem. All
members of an object type have the same attributes and management semantics. An
object can have a different object type in every subsystem that knows about the object.
In DNS, the subsystem-object type is a particular kind of attribute associated with a
subsystem-object name. It is a template that simplifies the definition of a subsystem-
object name by specifying the kind of object to which the name refers.
Subsystem-object type name. In DNS, the name that identifies a subsystem-object type.
For example, logical unit, LU IN SNAX, or LINE IN AM6520.