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An Introduction to Clouds

An Introduction to Clouds. Presented by: Prof Mark Baker ACET, University of Reading Tel: +44 118 378 8615 E-mail: Mark.Baker@computer.org Web: http://acet.rdg.ac.uk/~mab. What is Cloud Computing?. Providing Software as a Service (SaaS) - delivering applications over the Internet.

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An Introduction to Clouds

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  1. An Introduction to Clouds Presented by: Prof Mark Baker ACET, University of Reading Tel: +44 118 378 8615 E-mail: Mark.Baker@computer.org Web: http://acet.rdg.ac.uk/~mab mark.baker@computer.org

  2. What is Cloud Computing? • Providing Software as a Service (SaaS) - delivering applications over the Internet. • More recently also Hardware infrastructure, platform as a service. • Based on Utility Computing - pay-as-you-go: • The under lying idea of infinite resources, • No up-front costs, • Billing (e.g. hourly). mark.baker@computer.org

  3. Different Cloud Computing Layers‏ MS Live/ExchangeLabs, IBM, Google Apps; Salesforce.com Quicken Online, Zoho, Cisco Application Service (SaaS)‏ Google App Engine, Mosso, Force.com, Engine Yard, Facebook, Heroku, AWS Application Platform 3Tera, EC2, SliceHost, GoGrid, RightScale, Linode Server Platform Storage Platform Amazon S3, Dell, Apple, ... mark.baker@computer.org

  4. Virtualization • Virtual workspaces: • An abstraction of an execution environment that can be made dynamically available to authorised clients by using well-defined protocols, • Resource quota (e.g. CPU, memory share) • Software configuration (e.g. O/S, provided services) • Implement on Virtual Machines (VMs): • Abstraction of a physical host machine • Hypervisor intercepts and emulates instructions from VMs and allows management of VMs • VMWare, Xen, etc. • Provide infrastructure API: • Plug-ins to hardware/support structures App App App OS OS OS Hypervisor Hardware Virtualized Stack mark.baker@computer.org

  5. Cloud-Sourcing • Why is it becoming a Big Deal: • Using high-scale/low-cost providers, • Any time/place access via web browser, • Rapid scalability; incremental cost and load sharing, • Can forget need to focus on local IT. • Concerns: • Performance, reliability, and SLAs, • Control of data, and service parameters, • Application features and choices, • Interaction between Cloud providers, • No standard API – mix of SOAP and REST! • Privacy, security, compliance, trust… mark.baker@computer.org

  6. Different types of Cloud • Amazon: • Computing in the cloud! • EC2 (with S3, SQS and SimpleDB), • Use Xen VMs, • Workflow and Security. • Google: • Apps: Python module/API, • Working also with IBM. • Microsoft: • Azure! • Yahoo: • Pipes, Working with Computational Research Laboratories • Sun/IBM/HP and others… mark.baker@computer.org

  7. Cloud Schedule Day 2: Cloud-based Services 0930 -Welcome and Introduction to Day 2 of the Workshop, Mark Baker 0945 - An Introduction to Cloud-based Services, Paul Watson, Newcastle 1035 -Tea/Coffee (15 minutes) 1050 -The Open Cirrus Cloud Computing Testbed, Marcel Kunze - opencirrus 1140 - Clouds and Services for Data Intensive Research, Roger Barga, MS 1230 - Lunch (60 minutes) 1330 - Developing Applications for Cloud Computing Platforms, Jeremy Cohen, IC 1415 -The Attraction of Cloud to Enterprise, vision and reality, Ian Osborne 1500 - Coffee 1515 - Cloud-based Security Services, Richard Sinnott, Glasgow 1600 - IBM and Dynamic Infrastructure, Doug Neilson, IBM 1645 - Panel and General Discussion about the days activities (45 minutes) mark.baker@computer.org

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