Summary

In this chapter, you learned that testing your cluster configuration is very important before deploying your cluster on the production environment. You saw how to test for hardware and network failure, and how to check whether the test was successful or not. You should think of additional cluster failover tests to perform, in order to cover as many scenarios as possible. The failover tests depend on the cluster infrastructure and cluster configuration, and are specific to each cluster. The cluster administrator should have an idea of which tests they should perform. By thoroughly testing your cluster configuration, you can prevent unwanted cluster service downtime. In the next chapter, you will familiarize yourself with two-node cluster considerations on CentOS 6. You will learn how to configure the cluster for two-node operation and also how to add a Quorum disk to a cluster configuration.