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This document provides a high-level overview of the High Availability Add-On for Red Hat Enterprise Linux 6.
Although the information in this document is an overview, you should have advanced working knowledge of Red Hat Enterprise Linux and understand the concepts of server computing to gain a good comprehension of the information.
For more information about using Red Hat Enterprise Linux see the following resources:
  • Red Hat Enterprise Linux Installation Guide — Provides information regarding installation of Red Hat Enterprise Linux 6.
  • Red Hat Enterprise Linux Deployment Guide — Provides information regarding the deployment, configuration and administration of Red Hat Enterprise Linux 6.
For more information about this and related products for Red Hat Enterprise Linux 6, see the following resources:
  • Configuring and Managing the High Availability Add-On Provides information about configuring and managing the High Availability Add-On (also known as Red Hat Cluster) for Red Hat Enterprise Linux 6.
  • Logical Volume Manager Administration — Provides a description of the Logical Volume Manager (LVM), including information on running LVM in a clustered environment.
  • Global File System 2: Configuration and Administration — Provides information about installing, configuring, and maintaining Red Hat GFS2 (Red Hat Global File System 2), which is included in the Resilient Storage Add-On.
  • DM Multipath — Provides information about using the Device-Mapper Multipath feature of Red Hat Enterprise Linux 6.
  • Load Balancer Administration — Provides information on configuring high-performance systems and services with the Red Hat Load Balancer Add-On (Formerly known as Linux Virtual Server [LVS]).
  • Release Notes — Provides information about the current release of Red Hat products.


For information on best practices for deploying and upgrading Red Hat Enterprise Linux clusters using the High Availability Add-On and Red Hat Global File System 2 (GFS2) see the article "Red Hat Enterprise Linux Cluster, High Availability, and GFS Deployment Best Practices" on Red Hat Customer Portal at .
This document and other Red Hat documents are available in HTML, PDF, and RPM versions online at

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If you find a typographical error in this manual, or if you have thought of a way to make this manual better, we would love to hear from you! Please submit a report in Bugzilla: against the product Red Hat Enterprise Linux 6, the component doc-High_Availability_Add-On_Overview and version number: 6.9.
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