Very nice illustration and explanation of hybrid cloud by VMwareDoug

The following figure depicts an evolving strategy and model for Federal cloud adoption. In this model of a hybrid and optimized Federal cloud, we see that at one end of the spectrum, [A], security requirements and service levels are relatively low. Such an environment is conducive to public facing workloads. Although still substantial, security requirements for public data are considerably less than other data types. Service levels, such as availability, hover at only three 9’s (e.g., 99.9%). At the other end of the spectrum, both security and service level requirements are extremely high [C], demanding the strictest confidentiality, integrity, availability, and service level performance (e.g. 99.999%).