Gist of cloud
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This document discusses cloud computing and provides definitions, examples, and considerations. It defines cloud computing as providing scalable IT capabilities as a service over the internet. It outlines different cloud service models like Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) and examples of providers. The document cautions that traditional applications may not easily scale in the cloud and that cloud applications need to be designed for statelessness, idempotency, and horizontal scaling using NoSQL databases.
Gist of cloud
- 1. Gist of Cloud..Dinesh Varadharajan@gvdineshDirector – EngineeringOrangeScape Technologies
- 2. Google Moderator – questions..
- 3. What is cloud computing?According to Gartner cloud computing is “a style of computing where massively scalable IT-related capabilities are provided ‘as a service’ across the Internet to multiple external customers.”
- 4. Cloud – as cloudy as it gets
- 5. Why Cloud? Why in India?Concept: MWD Advisors
- 6. Where do I start?Depends on what you want..Already developed an application. Want to move to cloud.Have a business idea to develop web-scale business application.Need a business solution. Don’t want to own it.
- 7. IaaS, PaaS & SaaS$21b by 2012 @ 20% Cloud Apps: Application delivered to the end users on a pay-by-use model. e.g: Salesforce.com, SuccessFactorsCloud Middleware: Simplifies SaaS development, accelerates time to market & ALM eg: OrangeScape, force.com, many others$9b by 2012 @ 160%Cloud OS: Defines an auto scaling architecture over IaaS. e.g: Google GAE, Microsoft Azure$4b by 2012 @ 60%Cloud Infra: Infrastructure on demand - makes pay-by-use feasible. e.g: Amazon EC2, GoGrid, NetMagicSource: AMR, Gartner, IDC, William Blair & Co
- 8. Source: Forrester ResearchCloud Taxonomy
- 9. Options for development…IaaSSaaSPaaSGoogle app engine, OrangeScape, Force.comAWS, RackspaceSalesForce, SugarCRM,Gmail
- 10. Cloud wash your applications.Unfortunately will not work. Traditional applications will not scale exponentially unless designed correctly.No secret sauce for migration.
- 11. Basic features of cloud applications.StatelessnessNo node is special.Neo, The one kill scalability.IdempotencyThe same request can be processed again and again without altering the state of the system.NoSQLHorizontal scaling at datastore level.
- 12. Cloud isn’t all rosy?