Chapter 3

Cloud Infrastructure

In this chapter we overview the cloud computing infrastructure at Amazon, Google, and Microsoft as of mid-2012. These cloud service providers support one or more of the three cloud computing delivery models discussed in Section 1.4: Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-as-a-Service (SaaS). Amazon is a pioneer in IaaS, Google’s efforts are focused on SaaS and PaaS delivery models, and Microsoft is involved in PaaS.

Private clouds are an alternative to public clouds. Open-source cloud computing platforms such as Eucalyptus [269], OpenNebula, Nimbus, and OpenStack can be used as a control infrastructure for a private cloud. We continue our discussion of the cloud infrastructure ...

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