Distributed Name Service (DNS) Management Operations Manual

Glossary
31258 Tandem Computers Incorporated Glossary–5
domain name. A name assigned by a user to identify a domain to DNS.
DSM. See Distributed Systems Management.
DSMA. See Distributed Systems Management Application.
DSMS. See Distributed Systems Management Solutions.
DSNM. See Distributed Systems Network Management.
empty list or variable. A list that has no members, or a variable that has no content.
EMS. See Event Management Service.
error. A condition that causes a command or other operation to fail. Compare
warning.
error number. A value that can be assigned to a return token, or to the last field of an
error token, to identify an error that occurred. SPI defines a small set of error
numbers, but most error numbers are defined by subsystems.
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 management. The reporting and logging of important events that occur in a
system or network, the distribution and retrieval of information concerning those
events, and the actions taken by operations personnel or software in response to the
events. Compare control and inquiry.
Event Management Service. A software facility that provides event-message collection,
logging, and distribution facilities for the Guardian 90 operating system (implemented
as a major enhancement of the Guardian 90 operator process, $0). It provides for
different descriptions of events for human beings and for programs, lets an operator or
application select conveniently from event-message data, and allows for flexible
distribution of event messages within a system or network. It has programmatic
interfaces based on SPI for both event reporting and event retrieval. See event
message.
event message. In programmatic interfaces based on SPI, a special kind of SPI message
that describes an event occurring in the system or network. In Viewpoint, the
displayed form of such a message, shown as one line of text.
execute authority. The privilege to create a process based on a particular code file. In
DNS, the security attribute value required to change the state or configuration of DNS;
for example, to start DNS, change a DNS process, or alter the name of a file in the DNS
database.
Expand. The Tandem network-operating software that links together geographically
distributed NonStop computer systems to create a network that has the same
reliability, capacity to preserve database integrity, and potential for modular
expansion as a single system.
exporting To copy a name to a remote node, or to propagate a modification of a name
to the remote nodes on which the name resides.