Introduction

The Red Hat Cluster Suite is a collection of technologies working together to provide data integrity and the ability to maintain application availability in the event of a failure. Administrators can deploy enterprise cluster solutions using a combination of hardware redundancy along with the failover and load-balancing technologies in Red Hat Cluster Suite.

Red Hat Cluster Manager is a high-availability cluster solution specifically suited for database applications, network file servers, and World Wide Web (Web) servers with dynamic content. An Red Hat Cluster Manager system features data integrity and application availability using redundant hardware, shared disk storage, power management, and robust cluster communication and application failover mechanisms.

Administrators can also deploy highly available applications services using Piranha, a load-balancing and advanced routing cluster solution based on Linux Virtual Server (LVS) technology. Using Piranha, administrators can build highly available e-commerce sites that feature complete data integrity and service availability, in addition to load balancing capabilities. Refer to Part II Configuring a Linux Virtual Server Cluster for more information.

This guide assumes that the user has an advanced working knowledge of Red Hat Enterprise Linux and understands the concepts of server computing. For more information about using Red Hat Enterprise Linux, refer to the following resources:

HTML, PDF, and RPM versions of the manuals are available on the Red Hat Enterprise Linux Documentation CD and online at:

http://www.redhat.com/docs/

1. How To Use This Manual

This manual contains information about setting up a Red Hat Cluster Manager system. These tasks are described in Chapter 2 Hardware Installation and Operating System Configuration and Chapter 3 Cluster Configuration.

For information about configuring Red Hat Cluster Manager cluster services, refer to Chapter 4 Service Administration through Chapter 7 Setting Up Apache HTTP Server.

Part II Configuring a Linux Virtual Server Cluster describes how to achieve load balancing in an Red Hat Enterprise Linux cluster by using the Linux Virtual Server.

For information about deploying a Red Hat Cluster Manager cluster in conjunction with Red Hat GFS using the GFS Setup Druid, refer to Appendix C The GFS Setup Druid.

Appendix D Supplementary Hardware Information contains detailed configuration information on specific hardware devices and shared storage configurations. Appendix E Supplementary Software Information contains background information on the cluster software and other related information.

Appendix F Cluster Command-line Utilities provides usage and reference information on the command-line utilities included with Red Hat Cluster Suite.

This guide assumes you have a thorough understanding of Red Hat Enterprise Linux system administration concepts and tasks. For detailed information on Red Hat Enterprise Linux system administration, refer to the Red Hat Enterprise Linux System Administration Guide. For reference information on Red Hat Enterprise Linux, refer to the Red Hat Enterprise Linux Reference Guide.