Chapter 8. Two-node Cluster Considerations on CentOS 6
In previous chapters, you learned what high availability is all about and how to achieve it. You also learned how to install and configure a three-node cluster on CentOS 6. A guide to high availability on CentOS 6 cannot be complete without mentioning considerations for a two-node cluster configuration. In this chapter, you will learn the downsides of using a two-node cluster configuration and workarounds to resolve the issues.
Quorum in a two-node cluster
You learned about quorum in Chapter 2, Meet the Cluster Stack on CentOS. Quorum is the minimum number of cluster member votes required to perform a cluster operation. Without quorum, the cluster cannot operate. Quorum is achieved when the ...
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