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OpenNebula 3 Cloud Computing by Giovanni Toraldo

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Chapter 1. OpenNebula and Why it Matters?

In the last few years, many IT environments have been facing profound changes in how hardware infrastructure is designed and how software is being managed. This is thanks to what is popularly called The Cloud.

A cloud provides users with computation power, storage, and software services. It does not require knowledge of the physical location or the specific hardware configuration of where the services are running. It runs on the the same logic that applies to a power grid providing energy to different houses, where a consumer does not need to know how the power is produced or how it is delivered to the house. Services provided by a cloud can be subdivided into three main service layers, as follows:

  • Software ...

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