Cloud Model
Cloud computing is fundamentally a business model that enables organizations and individuals to outsource the ownership and operation of the compute, memory, storage, and networking of the hosts that support the organizations and individuals applications to cloud service providers. This chapter revi...
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Sprache: | eng |
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Zusammenfassung: | Cloud computing is fundamentally a business model that enables organizations and individuals to outsource the ownership and operation of the compute, memory, storage, and networking of the hosts that support the organizations and individuals applications to cloud service providers. This chapter reviews the standard roles, service models, and essential characteristics of cloud computing. The chapter concludes with a brief description of cloud regions and availability zones. As this work focuses on cloud-based applications, it considers the IaaS/PaaS-to-application service boundary as the application's resource facing service boundary. To efficiently operate pools of virtual machine servers, specialized online critical operations support systems (OSSs) referred to as virtual machine server controllers are required. The following elasticity measurement concepts are used in this work: density; provisioning interval; release interval; scaling in and out; scaling up and down; agility; slew rate and linearity; and elasticity speedup. |
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DOI: | 10.1002/9781118763407.ch3 |