cloud computing

Topics: Cloud computing, Grid computing, Virtual machine Pages: 48 (11722 words) Published: September 21, 2013
Introduction to

Cloud Computing
architecture
White Paper
1st Edition, June 2009

Abstract
Cloud computing promises to increase the velocity with which applications are deployed, increase innovation, and lower costs, all while increasing business agility. Sun takes an inclusive view of cloud computing that allows it to support every facet, including the server, storage, network, and virtualization technology that drives cloud computing environments to the software that runs in virtual appliances that can be used to assemble applications in minimal time. This white paper discusses how cloud computing transforms the way we design, build, and deliver applications, and the architectural considerations that enterprises must make when adopting and using cloud computing technology.

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Sun Microsystems, Inc.

Table of Contents
Introduction................................................................................................... 1 Sun’s perspective................................................................................................. 1 The Nature of Cloud Computing........................................................................ 3 Building on established trends. ............................................................................ 3 .

Virtual machines as the standard deployment object......................................... 3 The on-demand, self-service, pay-by-use model.................................................. 4 Services are delivered over the network............................................................ 7 The role of open source software...................................................................... 8 Cloud computing infrastructure models................................................................ 9 Public, private, and hybrid clouds..................................................................... 9 Architectural layers of cloud computing.......................................................... 12 Cloud application programming interfaces...................................................... 14 Cloud computing benefits.................................................................................. 15 Reduce run time and response time................................................................ 15 Minimize infrastructure risk............................................................................ 15 Lower cost of entry........................................................................................ 16 Increased pace of innovation.......................................................................... 16 Architectural Considerations for IaaS............................................................... 17 Evolving application architectures....................................................................... 17 Changing approaches to architecture.............................................................. 17 Changing application designs......................................................................... 17 The goals remain the same. ............................................................................... 19 .

Consistent and stable abstraction layer............................................................... 20 Standards help to address complexity............................................................. 21 Loose-coupled, stateless, fail-in-place computing................................................. 23 Horizontal scaling.............................................................................................. 24 Parallelization................................................................................................... 24 Divide and conquer........................................................................................ 26 Data physics...................................................................................................... 27 The relationship...
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