Cloud Computing

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Presentation Transcript

Cloud Computing An Introduction:

Cloud Computing An Introduction A.PARTHASARATHY B.SC COMPUTER SCIENCE 2 ND YEAR

Definitions:

Definitions 6-Apr-11 …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 internet to user’s screen. Cloud computing offers the ability to access software or information that can be delivered on- demand , over the internet , without the need to store it locally

Slide 5:

6-Apr-11

Virtualization:

Virtualization A software implementation of a machine that executes programs like a real machine. Virtualization is “something which is not REAL, but displays the full qualities of the REAL ”.

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6-Apr-11 Pros of using Virtualization Server Consolidation Testing and development Dynamic Load Balancing Disaster Recovery Virtual Desktops Reduction in cost of infrastructure Reduce power utilization cost (GREEN COMPUTING) Virtualization – The Cloud Computing Enabler

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Cons of using Virtualization Magnified physical failures Degraded performance New skills Complex root cause analysis New management tools Virtual machine sprawl

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Major Service Providers of Cloud Computing

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Amazon Elastic Compute Cloud “Amazon EC2” web service interface that provides resizable computing capacity in a cloud designed to make web-scale computing easier for developers reduces the time required to obtain and boot new server space from weeks to minutes allows developers to pay only for capacity that they actually use

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“Google 101” Network made up of millions of cheap servers, that would store staggering amounts of data, including numerous copies of the world wide web Makes search faster, helping ferret out answers to billions of queries in a fraction of a second Google invests more than $2 billion a year in data centers for cloud computing. Google App Engine

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Salesforce.com was found in 1999 by former Oracle executive Marc Benioff as a company specializing in SaaS software. They are best known for their Customer Relationship Management (CRM) products, which it delivers to businesses over the internet using the SaaS model. SaaS Force.com Platform Web Services

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Scalable Pricing in Cloud Computing Models of Pricing Free Subscription Model Pay Per Use Enterprise Unlimited License

Services Provided by Cloud Computing:

Services Provided by Cloud Computing 6-Apr-11

Key properties of Cloud Computing:

Key properties of Cloud Computing User Centric Task-Centric Powerful Accessible Programmable

Types Of Cloud Computing:

Types Of Cloud Computing Private Cloud Public Cloud Community Cloud Hybrid Cloud

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Provides hosted services to a limited number of people. Reliable Secure Efficient Controlled Flexible Private Cloud:

Public Cloud::

Public Cloud: Service provider makes resources dynamically available Benefits: - easy and in expensive setup - scalability - no wasted resources Ex: Amazon Elastic Computer Cloud, IBM’s Blue Cloud, Sun Cloud, Google AppEngine .

Community Cloud::

Community Cloud: Organizations having similar requirement. Privacy, security and/or policy compliance Ex: Google’s “Gov Cloud”

Hybrid Cloud::

Hybrid Cloud: Multiple internal and external providers Composition of more clouds Application: - Archiving of backup functions. - Deploying a web application in the cloud.

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Understanding Cloud Architecture: Individual users connect to the cloud from their own personal computers or portable devices, over the Internet. To these individual users, the cloud is seen as a single application, device, or document. The hardware in the cloud (and the operating system that manages the hardware connections) is invisible.

Application (SaaS)::

Application (SaaS): Run over internet. No need to install\maintain Complete customizable application Eg: Google Apps, Salesforce CRM

Platform (PaaS)::

Platform ( PaaS ): Deployment without complexity Eliminate most management tasks Pre-built components Eg: Google App Engine, Microsoft Azure

Infrastructure (IaaS)::

Infrastructure (IaaS): Network of servers Virtualized Billed on utility basis Eg: Nimbus, AWS

Server::

Server: Hardware/Software Specialized for cloud Eg: OS, multi core processors Network of virtualized computers

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Benefits From Cloud Computing: Collaborators: The ability to share and edit documents in real time between multiple users is one of the primary benefits of web-based applications; it makes collaborating easy and even fun. Road Warriors : you can access a single version of your document from any location. Cost- Consious users: Another group of users who should gravitate to cloud computing are those who are cost conscious. With cloud computing you can save money on both your hardware and software.

Difficulties for cloud computing:

Difficulties for cloud computing Continuous high availability Consistency Interoperability and standardization Scalability of all components Data secrecy Legal and political problem of data store and translation across regions Performance issue Difficulty customizing Copyright reserved ©UAT Forum

Cloud Computing Pros:

Cloud Computing Pros Reduced Hardware equipment for end users Improved Performance Lower Hardware and Software Maintenance Instant Software Updates Accessibility Less Expensive Better Collaboration Pay for what you use Flexible Need not invest on multiple licensing

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Cloud Computing Cons Security Issues (#1 concern) Internet connection Too many platforms Location of Servers Time for Transition Speed

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6-Apr-11 INCREASED RELIABILITY DEVICE INDEPENDANCY UNLIMITED STORAGE REMOTE ACCESS ECONOMICAL FACILITATES COLLABORATIONS ENABLES US TO SHIFT FOCUS ALL TIME DATA AVAILABILITY IMPROVED PERFORMANCE HIGHLY AUTOMATED EASILY SCALABLE MORE MOBILITY ADVANTAGES OF CLOUD COMPUTING

DISADVANTAGES OF CLOUD COMPUTING:

DISADVANTAGES OF CLOUD COMPUTING TOTALLY INTERNET CONNECTION ORIENTED REQUIRE HIGH BANDWIDTH OF NET CONNECTION VENDOR DEPENDANC FOR DATA MAINTENANCE HIGH BUDGET TO ESTABLISH CLOUD COMPUTING ENVIRONMENT NOT ACCESSIBLE BY EVERYONE CHANCES OF FRAUDANESS HUGE POWER IS REQUIRED

Conclusion:

Thus cloud computing provide a super-computing power .This cloud of computers extends beyond a single company or enterprise. The applications and data served by the cloud are available to broad group of users, cross-enterprise and cross-platform. It is truly a revolutionary concept for many business organizations because of the significantly lower maintenance cost, and greater work flow efficiency, there is no doubt that it will gain widespread popularity going forward. Conclusion

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Thanks again

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