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  • Book Overview & Buying CentOS High Availability
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CentOS High Availability

CentOS High Availability

By : Resman
4.5 (12)
Buy this Book
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CentOS High Availability

CentOS High Availability

4.5 (12)
By: Resman
Buy this Book

Overview of this book

This book is targeted at system engineers and system administrators who want to upgrade their knowledge and skills in high availability and want to learn practically how to achieve high availability with CentOS Linux. You are expected to have good CentOS Linux knowledge and basic networking experience.
Table of Contents (16 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Getting Started with High Availability
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1. Getting Started with High Availability
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What is high availability?
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System design
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Computer clusters
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High-availability solutions
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Summary
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2. Meet the Cluster Stack on CentOS
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2. Meet the Cluster Stack on CentOS
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Cluster stack software
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The cluster communication layer
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The cluster resource management layer
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A theoretical cluster service example
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Cluster stack on CentOS Linux
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Preparing for cluster stack software installation
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Summary
3
3. Cluster Stack Software on CentOS 6
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3. Cluster Stack Software on CentOS 6
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Cluster infrastructure
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Cluster operating system preparation
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Installing and configuring Corosync
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Installing and configuring CMAN
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Summary
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4. Resource Manager on CentOS 6
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4. Resource Manager on CentOS 6
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Working with RGManager
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Configuring failover domains
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Adding cluster resources and services
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Managing cluster services
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Removing cluster resources and services
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Summary
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5. Playing with Cluster Nodes on CentOS 6
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5. Playing with Cluster Nodes on CentOS 6
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Adding a new cluster node
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Removing a cluster node
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Summary
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6. Fencing on CentOS 6
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6. Fencing on CentOS 6
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Fencing
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Fencing configuration
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IPMI management board fencing
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HP iLO management board fencing
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Fencing test
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Summary
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7. Testing Failover on CentOS 6
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7. Testing Failover on CentOS 6
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Hardware failure
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Network failure
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Summary
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8. Two-node Cluster Considerations on CentOS 6
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8. Two-node Cluster Considerations on CentOS 6
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Quorum in a two-node cluster
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Two-node cluster configuration
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Quorum disk
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Summary
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9. Cluster Stack Software on CentOS 7
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9. Cluster Stack Software on CentOS 7
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Cluster infrastructure
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Installing and configuring Corosync
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Summary
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10. Resource Manager on CentOS 7
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10. Resource Manager on CentOS 7
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Working with pcs
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Adding cluster resources, constraints, and resource groups
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Managing resources
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Removing cluster constraints, resource groups, and resources
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Summary
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11. Playing with Cluster Nodes on CentOS 7
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11. Playing with Cluster Nodes on CentOS 7
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Adding a new cluster node
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Cluster node standby mode
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Removing a cluster node
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Summary
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12. STONITH on CentOS 7
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12. STONITH on CentOS 7
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Fencing
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Configuring fence devices
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IPMI management board fencing
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HP iLO management board fencing
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Fence test
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Summary
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13. Testing Failover on CentOS 7
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13. Testing Failover on CentOS 7
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Hardware failure
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Network failure
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Summary
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14. Two-node Cluster Considerations on CentOS 7
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14. Two-node Cluster Considerations on CentOS 7
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Quorum in a two-node cluster
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Two-node cluster configuration
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Summary
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Index
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Index

Cluster stack on CentOS Linux

There are endless possibilities and platforms a computer cluster can be installed and configured on and, therefore, also different software building the cluster stack. Since the objectives of this book are to familiarize you with the high-availability cluster running on CentOS Linux, I will present you with the cluster stack software to be used to install and configure a highly available computer cluster on CentOS Linux.

CentOS is a Community Enterprise Operating System. It is a Linux distribution that provides a free enterprise platform. The functionalities of CentOS are compatible with its commercial upstream source: Red Hat Enterprise Linux (RHEL). The current major CentOS version is 7 and was released on July 7, 2014. It offers many changes compared to its predecessor, CentOS version 6. Probably due to this and the fact that CentOS 6 maintenance updates will be supported until November 30, 2020, the majority of CentOS Linux servers still run CentOS version...

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CentOS High Availability
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