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CentOS High Availability

You're reading from CentOS High Availability

Product type Book

Published in Apr 2015

Publisher

ISBN-13 9781785282485

Pages 174 pages

Edition 1st Edition

Languages

Concepts

High Performance Programming

Table of Contents (21) Chapters

CentOS High Availability

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

1. Getting Started with High Availability

2. Meet the Cluster Stack on CentOS

3. Cluster Stack Software on CentOS 6

4. Resource Manager on CentOS 6

5. Playing with Cluster Nodes on CentOS 6

6. Fencing on CentOS 6

7. Testing Failover on CentOS 6

8. Two-node Cluster Considerations on CentOS 6

9. Cluster Stack Software on CentOS 7

10. Resource Manager on CentOS 7

11. Playing with Cluster Nodes on CentOS 7

12. STONITH on CentOS 7

13. Testing Failover on CentOS 7

14. Two-node Cluster Considerations on CentOS 7

Index

Adding cluster resources and services

The difference between cluster resources and cluster services is that a cluster service is a service built from one or more cluster resources. A configured cluster resource is prepared to be used within a cluster service. When you are configuring a cluster service, you reference a configured cluster resource by its unique name.

Resources

Cluster resources are defined within the <rm> RGManager tag of the CMAN configuration file. They begin with the <resources> tag and end with the </resources> tag. Within the <resources> tag, all cluster resources supported by RGManager can be configured.

Cluster resources are configured with resource scripts, and all RGManager-supported resource scripts are located in the /usr/share/cluster directory along with the cluster resource metadata information required to configure a cluster resource. For some cluster resources, the metadata information is listed within the cluster resource scripts, while...

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