Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.2 Guia de Instalação descarregar pdf (Página 34)

Figure 1.18. GNBD Overview

8. Linux Virtual Server

Linux Virtual Server (LVS) is a set of integrated software components for balancing the IP load

across a set of real servers. LVS runs on a pair of equally configured computers: one that is an

active LVS router and one that is a backup LVS router. The active LVS router serves two roles:

• To balance the load across the real servers.

• To check the integrity of the services on each real server.

The backup LVS router monitors the active LVS router and takes over from it in case the active

LVS router fails.

Figure 1.19, “Components of a Running LVS Cluster” provides an overview of the LVS

components and their interrelationship.

Chapter 1. Red Hat Cluster Suite Overview

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Red Hat CLUSTER SUITE FOR ENTERPRISE LINUX 5.2 Guia de Instalação Página 34