8-Creative_Configurations-A

8-Creative_Configurations-A - CREATIVE CONFIGURATIONS...

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Sponsored By: The Cloud is confusing… well it can be, and that’s where CloudU™ comes in. CloudU is a comprehensive Cloud Computing training and education curriculum developed by industry analyst Ben Kepes. Whether you read a single whitepaper, watch a dozen webinars, or go all in and earn the CloudU Certificate, you’ll learn a lot, gain new skills and boost your resume. Enroll in CloudU today at CREATIVE CONFIGURATIONS Mixing and Matching Public, Private and Hybrid Clouds for Maximum Benefits
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Executive Summary Perhaps one of the most contentious debates in the Cloud Computing world is that around Private Clouds. Many commentators remain adamant that Private Cloud does not, in fact, constitute a legitimate example of the Cloud 1 . Others are more pragmatic and see Private Cloud as well as Hybrid approaches as logical stepping stones towards the Cloud. In this paper we will define these three distinct delivery mechanisms–Public Cloud, Private Cloud and Hybrid Cloud–and show how any of the three may be the best approach for customers depending on the particulars of the use case. We will also bring some clarity to when each approach is most appropriate and build the case for a flexible Cloud implementation that recognizes that not one technology will fit all organizations. Table of Contents Executive Summary 1 What is Public Cloud? 2 Public Cloud Benefits 3 What is  Private Cloud? 4 Private Cloud Benefits 5 What is Hybrid Cloud? 7 Benefits of Hybrid Cloud 8 When to Use Hybrid Cloud 10 Conclusion 12 About Diversity Analysis 13 About Rackspace 14
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Creative Configurations: Mixing and Matching Public, Private and Hybrid Clouds for Maximum Benefits © Diversity Limited, 2011 Non-commercial reuse with attribution permitted 2 What is Public Cloud? A Public Cloud is justifiably held up as the quintessential way of delivering the Cloud – in part because it was the first approach that utilized the term “Cloud” but also because it displays all of the relevant criteria that are commonly used to describe Cloud solutions. Public Cloud solutions follow the most widely quoted definition of Cloud Computing. The National Institute of Science and Technology 2 has defined Cloud Computing as; …a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources… that can be rapidly provisioned and released with minimal management effort or service provider interaction. This model promotes availability and is composed of five essential characteristics (On- demand self-service, Broad network access, Resource pooling, Rapid elasticity, Measured Service); three service models (Cloud Software as a Service (SaaS), Cloud Platform as a Service (PaaS), Cloud Infrastructure as a Service (IaaS)); and, four deployment models (Private Cloud, Community Cloud, Public Cloud, Hybrid Cloud). Key enabling technologies include: (1) fast wide-area networks, (2)  powerful, inexpensive server computers, and (3) high-performance virtualization for commodity hardware.
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