Clusters from Scratch - Apache,
DRBD and GFS2
Creating Active/Passive and Active/Active
Clusters on Fedora 12

Table of Contents
Read-Me-First v
The Scope of this Document v
Formatting conventions used in this document v
What Is Pacemaker?

Types of Pacemaker Clusters
Pacemaker Architecture
Installation
OS Installation
Cluster Software Installation
Install the Cluster Software
Security Shortcuts
Setup
Before You Continue
Finalize Node Configuration
Finalize Networking
Configure SSH
Short Node Names
Configuring OpenAIS
Propagate the Configuration
Verify OpenAIS Installation
i
Verify Pacemaker Installation
Using Pacemaker Tools
Create an Active/Passive Cluster
Exploring the Existing Configuration
Adding a Resource
Perform a Failover
Quorum and Two-Node Clusters
Prevent Resources from Moving after Recovery
Apache - Adding More Services
nstallation
Preparation
Update the Configuration
Ensuring Resources Run on the Same Host
Controlling Resource Start/Stop Ordering
Specifying a Preferred Location
Manually Moving Resources Around the Cluster
Giving Control Back to the Cluster
Shsing DRBD for Shared Storage
Install Pre-requisites
Build DRBD Packages
Install the DRBD Packages
Configure DRBD
Create A Partition for DRBD
Write the DRBD Config
Initialize and Load DRBD
Populate DRBD with Data
Configure the Cluster for DRBD
Testing Migration
Conversion to Active/Active
Install a Cluster Filesystem - GFS2
Setup Pacemaker-GFS2 Integration
Add the DLM service
Add the GFS2 service
Create a GFS2 Filesystem
Preparation
Create and Populate an GFS2 Partition
Reconfigure the Cluster for GFS2
Reconfigure Pacemaker for Active/Active
Recovery
Configure STONITH
Why You Need STONITH
What STONITH Device Should You Use
Configuring STONITH
Example
Configuration Recap
Final Cluster Configuration
Node List
Cluster Options
Resources
Default Options
Fencing
Service Address
Distributed lock manager
Oracle control daemon
DRBD - Shared Storage
Cluster Filesystem
Apache
Add a Third Node
Appendix: Sample openais.conf
Appendix: Further Reading