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Introducing vFoglight 29

How vFoglight Works

Observation An observation taken over time, for example, a Metric,

StringObservation, or TopNList.

In vFoglight, every observation is linked to a specific part of the

topology model, for example, CPU utilization on a particular

monitored host.

Metric A simple value observation measured over time, for example, a

count, rate, or percentage.

Service In vFoglight, a service is defined as any grouping of meaningful

or interesting things in your monitored environment, for

example, a business process or an application. A service is often

governed by a Service Level Agreement (SLA).

Foglight allows you to define a new service and edit existing

services. See “Services” on page 32 for more information.

Service Levels In vFoglight, service levels are availability measurements on

services. See “Service Levels, Alarms, and State” on page 33

for more information.

Service Level

Agreement

(SLA)

An agreement between information technology managers and

end-users on the availability of system and application

resources.

Application A set of tiers in which each tier contains a set of monitored

elements, for example, hosts and servers. A tier has a defined

flow that represents data moving from the user to back-end

systems.

Foglight allows you to build models that represent your

monitored applications in a way that makes sense to you. A new

service is automatically created for each new application. See

“Applications” on page 34 for more information.

vFoglight

Management

Server

The central component of vFoglight. The Management Server

receives information from agents, stores and processes data, and

makes it available in the browser interface. See “vFoglight

Management Server” on page 35 for more information.

Term Definition

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Dell Vizioncore Guía de inicio rápido Pagina 29