Introduction
The High Availability Add-On for Red Hat Enterprise Linux and its associated products are used to
construct clusters for:
• High availability for applications
• Network load balancing across multiple servers
• File system sharing across multiple servers
• High performance computing
HP ProLiant servers are an excellent choice for any of these cluster use cases. Red Hat and HP
provide extensive documentation to help you achieve optimum results when running the High
Availability Add-On and other associated products on ProLiant servers. These documents are found in
a variety of locations. The purpose of this document is to help you find the information you need
quickly – it is a single source directing you to reference and best practice information pertaining to
both Red Hat cluster products and HP ProLiant servers.
A Red Hat cluster may contain a number of Red Hat products, including Red Hat Enterprise Linux
(RHEL), the High Availability Add-On for Red Hat Enterprise Linux, and other associated Red Hat
products. This document uses the term “RHEL cluster” to represent these products.
Intended Audience
This white paper is intended for HP and Red Hat customers, and HP and Red Hat personnel who
design or manage RHEL clusters running on HP ProLiant servers. Readers are expected to have a
basic understanding of Red Hat Enterprise Linux, the High Availability Add-On and associated
products, and HP ProLiant server concepts.
Pointers to Red Hat documentation
Red Hat provides product documentation in the form of both manuals and Red Hat Knowledgebase
articles.
Red Hat manuals
Manuals for both RHEL5 and RHEL6 clusters can be found on the following publicly-available Red Hat
product documentation page, in both HTML and PDF formats:
https://access.redhat.com/knowledge/docs/Red_Hat_Enterprise_Linux
The RHEL5 titles include:
• Cluster Suite Overview – the place to start for an introduction to RHEL clustering on RHEL5.
• Cluster Administration – provides general configuration and routine management information.
• Virtual Server Administration – provides a functional overview and configuration information
for this network load-balancing software.
• Global File System 2 – documents the features of the Red Hat second-generation cluster file
system (GFS2), and provides configuration, management, and troubleshooting information.
Discusses the differences between the first generation GFS and GFS2, and provides
conversion procedures. GFS2 offers significant advantages over GFS on RHEL5.
• Global File System – documents the features of the Red Hat first generation cluster file system
(GFS), and provides configuration and management information. GFS2 offers significant
advantages over GFS on RHEL5.
• Global Network Block Device – explains the use of Red Hat's GNBD with the GFS cluster file
system.
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