Red Hat CLUSTER FOR ENTERPRISE LINUX 5.0 Guide d'installation télécharger pdf (Page 30)

Fig u re 1.15. G NBD O verview

1.8. Linux Virt ual 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 1.16, “ Components of a Running LVS Cluster” provides an overview of the LVS components

and their interrelationship.

Red Hat Ent erprise Linux 5 Clust er Suit e Overview

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Red Hat CLUSTER FOR ENTERPRISE LINUX 5.0 Guide d'installation Page 30