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Infrastructure as a Service

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Definitions Edit

infrastructure as a Service (IaaS) is

one type of cloud computing in which a vendor offers various infrastructure components such as hardware, storage, and other fundamental computing resources.[1]
[t]he capability provided to the cloud service customer is to provision processing, storage, networks, and other fundamental ]computing resources where the cloud service customer is able to deploy and run arbitrary software, which can include operating systems and applications. The cloud service customer does not manage or control the underlying cloud infrastructure but has control over operating systems, storage, and deployed applications; and possibly limited control of select networking components (e.g., host firewalls).[2]

Overview Edit

"Infrastructure as a service (IaaS) provides computing resources such as processing, storage and networks to the users of clouds, and enables users to leverage these resources through their own implementation of virtualisation capabilities. Providers of these hardware virtual machines offer access to raw computing resources and a high degree of flexibility. IaaS users are able to access computational resources (e.g. CPUs), and run operating systems and software on the provided computing resources. The flexibility for users is very high is the IaaS model as there are only few limits on the kinds of application that can be hosted on these services."[3]

Key components Edit

Implementation of IaaS typically includes the following layered components:

Key characteristics Edit

The key characteristics of IaaS include:

References Edit

  1. Information Technology Reform: Progress Made; More Needs to Be Done to Complete Actions and Measure Results, at 5 n.b.
  2. Cloud Service Level Agreement Standardisation Guidelines, at 13.
  3. Cloud Computing: The Concept, Impacts and the Role of Government Policy, at 10.

See also Edit


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