Cloud computing
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The document discusses cloud computing, defining it as computing and data that is moved away from desktops and accessed over the internet. It describes cloud computing categories including Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). IaaS provides basic storage and computing capabilities, PaaS delivers operating systems and services, and SaaS offers complete applications on demand.
Cloud computing
- 1. CLOUD COMPUTING Ankur Desai, Manish Chiniwalar Electronics & Communication Department, Gogte Institute of Technology, Belgaum
- 2. Definition “… moving computing and data away from the desktop and the portable PC and simply displaying the results of computing that takes place in a centralized location and is then transmitted via the internet on the user's screen” - John Makroff
- 3. Introduction Cloud is a metaphor for describing the Internet. On-demand self-service Internet Infrastructure where you pay only for what you use, all managed by a browser, application or API. The best example of cloud computing is Google Apps where any application is deployed on the server can be accessed using a browser through the Internet. Where we install subscribe softwares
- 4. Other technologies Grid computing: In a grid of multiple computers, each of them us the others available resources. Utility computing:
- 5. Architecture Cloud Computing FRONT END BACK END Server/Data center + Any software (OS, docs, email, games, etc) Client Computer + Interface software Internet
- 6. Characteristics Massive scale Virtualization Non-stop computing Software purchase not required Geographic distribution Service oriented software Autonomic computing Advanced security technologies
- 7. Cloud Computing Categories IaaS - Infrastructure as a Service PaaS - Platform as a Service SaaS - Software as a Service
- 8. Infrastructure as a Service (IaaS) Delivers basic storage and compute capabilities as standardized services over the network. Servers, storage systems, switches, routers, and other systems are pooled and made available to handle workloads that range from application components to high-performance computing applications.
- 9. Infrastructure as a Service (IaaS)
- 10. Platform as a Service (PaaS) It is a paradigm for delivering operating systems and associated services over the Internet without downloads or installation. Also delivers platform for application development on cloud technologies.
- 11. Platform as a Service (PaaS)
- 12. Software as a Service (SaaS) Features a complete application offered as a service on demand. A single instance of the software runs on the cloud and services multiple end users or client organizations. Applications may include document editors, games, or any other custom built application
- 13. Software as a Service (SaaS)
- 15. Traditional Computing Purchase hardware Purchase software Find space in data center Create migration plan Setup development & test Configure systems Configure databases Configure networks
- 16. With Cloud Computing Get a login ID! Lets look at an example…
- 17. The eyeOS operating system
- 18. The eyeOS operating system
- 19. The eyeOS operating system
- 20. The eyeOS operating system
- 21. SINGLE TENANT Vs MULTI-TENANT ARCHITECTURE Single tenancy gives each customer a dedicated software stack – and each layer in each stack still requires configuration, monitoring, upgrades, security updates, patches, tuning and disaster recovery. On a multi-tenant platform, all applications run in a single logical environment: faster, more secure, more available, automatically upgraded and maintained. Any improvement appears to all customers at once. Server OS Database App Server Storage Network App 1 Server OS Database App Server Storage Network App 2 Server OS Database App Server Storage Network App 3 Other apps Shared infrastructure
- 22. Advantages Agility Cost Device and location independence Multi-tenancy Centralization Peak-load Utilization and efficiency Reliability Scalability Security Sustainability
- 23. DISADVANTAGES OF CLOUD COMPUTING Stored data might not be secure Dependent on internet connection It’s not platform agnostic Can be slow
- 24. Manish Chiniwalar Ankur Desai & Visit our Blogs:
Editor's Notes
- #3: .. moving computing and data away from the desktop and the portable PC and simply displaying the results of computing that takes place in a centralized location and is then transmitted via the internet on the user's screen .. - John Makroff .. a computing paradigm shift where computing is moved away from personal computers or an individual application server to a "cloud" of computers .. Wikipedia .. the idea of relying on Web-based applications and storing data in the "cloud" of the internet .. - MIT Technology Review .. the cloud is a smart, complex, powerful computing system in the sky that people can just plug into .. - Marc Andreessen
- #4: C ommon, L ocation-independent, O nline U tility on D emand Common implies multi-tenancy, not single or isolated tenancy Utility implies pay-for-use pricing on Demand implies ~infinite, ~immediate, ~invisible scalability Alternatively, a “Zero-One-Infinity” definition: 0 On-premise infrastructure Acquisition cost Adoption cost Support cost 1 Coherent and resilient environment – not a brittle “software stack”  Scalability in response to changing need Integrability/Interoperability with legacy assets and other services Customizability/Programmability from data, through logic, up into the user interface without compromising robust multi-tenancy
- #7: Local computer no longer needs to take the processing load Storage & Computing is done by the cloud data center The only software required is the Interface Software
- #24: Stored data might not be secure: With cloud computing, all your data is stored on the cloud. How secure is the cloud? Can unauthorized users gain access to your confidential data? Cloud computing companies say that data is secure, but it's too early in the game to be completely sure of that. Dependent on internet connection:  Internet connectivity isn’t completely stable and reliable. For cloud computing to be completely accessible anywhere, we’ll probably need to wait a few more years for the internet service providers to step up to the plate. It’s not platform agnostic : Most clouds force participants to rely on a single platform or host only one type of product. If you need to support multiple platforms, as most enterprises do, then you’re looking at multiple clouds. That can be a nightmare to manage. Can be slow: Even on a fast connection, web-based applications can sometimes be slower than accessing a similar software program on your desktop PC.