As described in Chap. 1, a private cloud is the deployment of cloud computing principles and capabilities on your own premises and infrastructure. This can be compared to the idea of using utility services built on your own power plant. Just as a utility consumer doesn’t care about the technology of the boilers, turbines, and generators necessary to produce electrical power, a private cloud consumer doesn’t need to care about the servers, network, and storage necessary to generate the computing power that runs the applications services they consume. Nonetheless, you should have a good understanding of the underlying technologies whether you build and operate a private power plant or a private cloud datacenter.