Event message – HP NonStop G-Series User Manual

Page 284

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E

EMU (Environmental Monitoring Unit)

An element which monitors the status of an enclosure, including the power, air
temperature, and blower status. The EMU detects problems and displays and reports
these conditions to a user and the controller. In some cases, the EMU implements
corrective action.

enclosure

A single sheet-metal structure and its enclosed set of system components.

Ethernet

A local area network (LAN) that uses the carrier sense multiple access with collision
detection (CSMA/CD) access method on a bus topology and is the basis for the IEEE
802.3 standard.

Ethernet 4 ServerNet adapter (E4SA)

A ServerNet adapter for Ethernet local area networks (LANs) that contains four Ethernet
ports.

Event Management Service (EMS)

A Distributed Systems Management (DSM) product that is used to provide 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

.

event message

The text intended for a system operator that describes a change in some condition in the

system

or

network

, whether minor or serious. The change of condition is called an event.

Events can be operational errors, notifications of limits exceeded, requests for actions
needed, and so forth.

Event Management Service (EMS)

formatted events can be viewed

by the

OSM Event Viewer

.

Expand network

The HP NonStop" operating system network that extends the concept of fault-tolerant
operation to networks of geographically distributed HP NonStop" systems. If the network
is properly designed, communication paths are constantly available even if a single line
failure or component failure occurs.

external fabric connection

The low-level ServerNet connection between a node and one of the external ServerNet
fabrics. Each node has an X and a Y connection to the external fabrics.

external ServerNet fabrics

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