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IBM z/OS DFSMS: Transparent Cloud Tiering by Andrew N Wilt, Glenn R Wilcock, Jose Gilberto Biondo Jr, Keith Winnard

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What is a cloud?
In this chapter, we introduce cloud concepts. The goal is to provide you with a basic understanding of what a cloud is, and present you with a table of questions to think about and apply to your circumstances.
1.1 Cloud overview
The National Institute of Standards and Technology (NIST) provides the following definition1 for cloud computing:
Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (for example, networks, servers, storage, applications, and ...

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