SNAX/APC Configuration and Management Manual

Glossary
SNAX/APC Configuration and Management Manual—138787
Glossary-4
Distributed Systems Management (DSM)
Distributed Systems Management (DSM). A set of tools used to manage Tandem NonStop
systems and Expand networks.
domain. A set of objects over which control or ownership is maintained. Types of domains
include power domains and service processor (SP) domains.
DOUT. Data transmitted from SNAX/APC.
DSM. See Distributed Systems Management (DSM)
.
dynamic. A description given to objects such as partner (remote) LUs and modes that do not
need to be defined by the user who configures the SNAX/APC subsystem. These
entities will be configured by SNAX/APC at the time that they are actually required, and
will be removed from the subsystem when the session is terminated, without any user
intervention. This dynamic support is intended primarily for use with the end node
feature of SNAX/APN which enables remote LUs, previously unknown to the local LU,
to initiate conversations.
dynamic configuration. PTNR-LU and PTNR-MODE SCF objects created and managed by
SNAX/APC without input by the user. Contrast with static configuration
.
EMS. See Event Management Service (EMS)
.
EN. See end node (EN)
.
end node (EN). A type 2.1 node that provides full SNA end-user services, but no
intermediate routing or session services to any other node; it is configured only as an
endpoint in a network.
EnvoyACP/XF. A Tandem data link control that, combined with a communications-oriented
user application, supports connection with specialized bit-synchronous devices not
supported by higher-level Tandem communications products.
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 Service (EMS). A Distributed Systems Management (DSM) product
that provides event collection, event logging, and event distribution facilities. EMS
provides different event descriptions for interactive and programmatic interfaces, lets an
operator or an application select specific event-message data, and allows for flexible
distribution of event messages within a system or network.
Exchange Identifications (XID). A data link control command and response passed between
adjacent link stations that allow the two link stations to exchange identification and other
information that is necessary for further operation over the data link.
Expand network. The Tandem NonStop Kernel operating system network that extends the
concept of fault-tolerant operation to networks of geographically distributed Tandem