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Introducing vFoglight 27

Key Concepts and Terms

How vFoglight Works

Term Definition

Monitored

environment

The hosts, server instances, databases, and other systems in

your environment that are monitored by vFoglight agents.

The data collected from your environment is used in the Foglight

Management Server, where it populates model instances, drives

rules, and can be rendered in views.

Topology

A representation of—and a way of understanding—the logical

and physical relationship between items in your monitored

environment. At run-time, vFoglight dynamically builds

topology model instances based on data about your system that

is collected by vFoglight agents. Topology models provide the

context for the metrics sent by the agents to the vFoglight

Management Server.

Model The organizing principle used by vFoglight for data about your

monitored environment.

At run-time, vFoglight transforms monitoring data into model

instances. A model instance is a set of objects and relationships

designed to represent a monitored resource and its parts. Each

model instance is a representation of that model type. For

example, the HostModel type is a collection of Host objects;

each host object is one representation of the HostModel type.

vFoglight model instances hold collected data and transform it

into nodes, adding configuration data to each node as

properties, and attaching metric data to appropriate nodes as

metrics.

There are different types of models, including collection models

defined in vFoglight cartridges and models that you build, such

as applications and services.

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Dell Vizioncore Guía de inicio rápido Pagina 27