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Concepts of cloud computing
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- 2. “when its smarterto rent than to buy.” Cloud computing
- 3. Cloud Computingis used to describe a new class of network based computing that takes place over the Internet. Utility Computing. group of hardware, software and Internet infrastructure. Using Internet for communication. Hidden complexity. 2 What is Cloud Computing?
- 4. Services anytime ,anywhere ,any place. Pay for use and as needed, elastic scale up and down in capacity and functionalities. Service availability for everyone. Works on “PAY AS YOU GO” model. 3 What is Cloud Computing?
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- 7. Shared pool ofconfigurable computing resources On-demand network access Provisioned by the Service Provider 7 What is Cloud Computing Adopted from: Effectively and Securely Using the Cloud Computing Paradigm by peter Mell, Tim Grance
- 8. Services Application Development Platform Storage Hosting 8 Cloud ComputingService Layers Description Services – Complete business services such as PayPal, OpenID, OAuth, Google Maps, Alexa Services Application Focused Infrastructure Focused Application – Cloud based software that eliminates the need for local installation such as Google Apps, Microsoft Online Storage – Data storage or cloud based NAS such as CTERA, iDisk, CloudNAS Development – Software development platforms used to build custom cloud based applications (PAAS & SAAS) such as SalesForce Platform – Cloud based platforms, typically provided using virtualization, such as Amazon ECC, Sun Grid Hosting – Physical data centers such as those run by IBM, HP, NaviSite, etc.
- 9. Modes of Clouds PublicCloud Service provider makes applications and storage public. Can be freely accessed or offered on pay per usage model. E.g. : Amazon, Google, Microsoft, Sales force Private Cloud The computing infrastructure is dedicated to a particular organization and not shared with other organizations. more expensive and more secure when compare to public cloud. E.g. : HP data center, IBM, Sun, Oracle, 3tera Hybrid Cloud Comination of both private and public cloud.
- 10. no-need-to-know. flexibility and elasticity. utilisingthe resources of all kinds CPU, storage, server capacity, load balancing, and databases pay as much as used and needed. always on!, anywhere and any place. 10 Basic Cloud Characteristics
- 11. Virtualization meansto create a virtual version of a device or resource , such as a Server , storage device, network or even an OS. BENEFITS system infrastructure dependent, to be infrastructure-less. save in capital and operational investment Clients can: Put their data on the platform. put applications on cloud Virtualization Hardware OS App App App Hypervisor OS OS Virtualized Stack
- 12. Run operatingsystems without machines. Creating and backing up gets easier. Emulate more machines. Timesharing. Debug problems. Easy migration of virtual machines. Run legacy systems. Advantages of virtualization
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- 14. Cloud Operating Systems Eye OS Amoeba OS Glide OS Start force myGoya CorneliOS Lucid Desktop Cloudo, Ghost, Zimdesk, Start force etc.,
- 15. Amazon Simple StorageService (S3) Unlimited Storage. Pay for what you use: $0.20 per GByte of data transferred, $0.15 per GByte-Month for storage used, Second Life Update: 1TBytes, 40,000 downloads in 24 hours - $200, 15
- 16. Advantages of Cloud Computing Lowercomputer costs: You do not need a high-powered and high-priced computer. No requirement of processing and hard drive space. PC does not even need a CD or DVD drive. 16
- 17. Advantages of Cloud Computing Improvedperformance: Reduced software costs: No purchasing of software. most cloud computing applications today, such as the Google Docs suite. better than paying for similar commercial software. 17
- 18. Advantages of Cloud Computing Instant software updates: obsolete software and high upgrade costs. Auto-update. Improved document format compatibility. 18
- 19. Advantages of Cloud Computing Unlimitedstorage capacity: virtually limitless storage. Increased data reliability: No problem for crashing. data-safe computing platform! 19
- 20. Advantages of Cloud Computing Universaldocument access: No need of taking documents with you. instant availability. Latest version availability: 20
- 21. Disadvantages of CloudComputing Requires a constant Internet connection: Impossible without internet. A deal-breaker. 21
- 22. Disadvantages of CloudComputing Does not work well with low-speed connections: Huge bandwidth. Features might be limited: 22
- 23. Disadvantages of CloudComputing Can be slow: Stored data might not be secure. Stored data can be lost. 23
- 24. The Future Many ofthe activities loosely grouped together under cloud computing. Grid Computing was the last research-led centralised approach. the mainstream adapt of cloud computing. open source systems appearing that you can install and run. should be able to run a variety of applications on these systems 24
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