In this chapter, you learned the importance of monitoring your Ceph cluster and its supporting infrastructure. You should also have a good understanding of the various components that you should monitor and some example tools that can be used. We covered some of the PG states that in conjunction with a monitoring solution will allow you to understand the current status of your Ceph cluster. Finally, we deployed a highly scalable monitoring system comprising collectd, Graphite, and Grafana, which will enable you to create professional looking dashboards to show the status and performance of your Ceph cluster.
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