Distributed Name Service (DNS) Management Programming Manual

DNS Subsystem Objects
Introduction
1–2 46958 Tandem Computers Incorporated
DNS Subsystem
Objects
The DNS subsystem lets you assign names to objects to facilitate their management.
An object can be any entity that is associated with a subsystem. Examples of objects
are files, terminals, lines, and printers; some objects and their names are illustrated in
Figure 1-1. In fact, you can define many different types of objects to DNS, for example;
employee names, phone numbers, locations, and departments. If necessary, as in the
case of people and phone numbers, some objects may need to be associated with a
dummy subsystem that has been defined expressly for that purpose. Because objects
relate conceptually to the subsystems that control them, objects are called subsystem
objects or subsystem-controlled objects in this manual.
As an overview, DNS provides the means to:
Maintain names of objects controlled by Tandem and other systems
Organize objects into groups
Provide alternative names (aliases) for objects
Provide a single name for a set of objects
Figure 1-1. Objects and Their Names
Terminal
(TERM-006)
Controller
Node (\NY)
Disk File
(\NY.$ACCT.PAYROLL.EMP)
Comm.Line
($LINE 4)
SNAX
SNA
Controller
Logical Unit
($LINE4.#LU3)
005