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Chapter 1. Read-Me-First

Table of Contents

1.1. The Scope of this Document
1.2. What Is Pacemaker?
1.3. Pacemaker Architecture
1.3.1. Internal Components
1.4. Types of Pacemaker Clusters

1.1. The Scope of this Document

The purpose of this document is to definitively explain the concepts used to configure Pacemaker. To achieve this, it will focus exclusively on the XML syntax used to configure the CIB.
For those that are allergic to XML, there exist several unified shells and GUIs for Pacemaker. However these tools will not be covered at all in this document [3] , precisely because they hide the XML.
Additionally, this document is NOT a step-by-step how-to guide for configuring a specific clustering scenario.
Although such guides exist, [4] the purpose of this document is to provide an understanding of the building blocks that can be used to construct any type of Pacemaker cluster.

[3] I hope, however, that the concepts explained here make the functionality of these tools more easily understood.
[4] For example, see the Clusters from Scratch guide.