Cloud Computing - Xploreraj

8/8/2019 Cloud Computing - Xploreraj

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Presented by: Rajdeep Biswas

Roll No.: 0104IT071082; Branch: IT (VII Sem.)

R.K.D.F. Institute of Science & Technology

Cloud ComputingWhen Outsourcing Outsmarts Purchasing!


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Agenda

Defining Cloud Computing

Learning about Cloud Computing examples

Studying the deployment layers

Briefing the deployment models

Briefing the Cloud characteristics

Looking into the security issues

Checking out the inadequacies and advantages Checking out the future of Cloud Computing


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What is Cloud?

Cloud is a metaphor for

Internet,

based on how it is depicted in

computer network, diagrams, and is

an abstraction for the complex

infrastructure it conceals.


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What is Cloud Computing?

Leveraging 3rd party computing capability over the network to cutcosts, increase scale, improve agility, and access best practices..

Providing services onvirtual machines allocatedon lap of large physicalmachines, typically servers.

EngineeringPerspective

Methods to addressdynamic scalability andflexibility for large scaleapplications.

BusinessPerspective


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Cloud Examples


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Layers A computer hardware and/or software that relies on cloud computing for

application delivery, or that delivers cloud services, and, in either case, is essentiallyuseless without it.

Client

Software as a Service (SaaS) delivers software as a service over the Internet,eliminating the need to install and run the application on the customers owncomputer, and simplifying maintenance and support.

Application

Platform as a Service (PaaS) delivers a computing platform and/or a solution stackas a service, and facilitates deployment of applications without the cost andcomplexity of buying and managing the underlying hardware and software layers.

Platform

Infrastructure as a Service (IaaS) delivers computer infrastructure - typically aplatform virtualization environment as a service. Rather than purchasing servers,

software or other equipments, clients instead buy those as a fully outsourcedservice.Infrastructure

The server layer constitutes of computer hardware and/or computer software thatare specifically designed to deliver the cloud services, including multi-coreprocessors, cloud-specific operating systems and combined offerings.

Server


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Courtesy: Wikipedia (http://en.wikipedia.org/wiki/File:Cloud_computing_types.svg)

Cloud Deployment Models


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Essential Cloud Characteristics

On-demand self-service

Broad network access

Resource pooling- Location independence

Rapid elasticity

Measured service


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Security in Cloud


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Two Broad Categories of Cloud Security

Security issues faced by cloud providers (organizations

providing services via the cloud).

The providers must ensure the security & protection oftheir infrastructure and clients data and applications.

Security issues faced by the cloud customers.

The customer must ensure that the provider has takenproper security measures to protect their information.


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Dimensions of Cloud Security

Security and Privacy

Data Protection

Identity Management Physical and Personal

Security

Availability

Application Security Privacy

Compliance Business

Continuity and Data

Recovery Logs and Audit

Trails

Unique

ComplianceRequirements

Legal and

Contractual Issues Liability

Intellectual Property

End-of-Service


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The Inadequacies of Cloud!1. SLA (Service Level Agreements)

2. Performance

3. Trust Deficit Between Customer and Provider

4. Security Issues5. Making False Promises


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Still, Why Cloud Computing?1. Software as a Subscription (Pay as you go)

2. Reduced Software Maintenance

3. Increased Reliability

4. Increased Scalability5. Cost Reduction

6. Environmentally Friendly

7. Matches Current Computing Trends

8. Portability/ Accessibility9. Efficient Use of Computer Resources

10. Versionless Software


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The FutureA solid majority of technology experts and stakeholders

expect that by 2020, most users will perform most

computing and communicating activities through connections

to servers operated by outside firms.

This does not mean, however, that most of these experts

think the desktop computer will disappear soon. The

majority sees a hybrid life in the next decade, as some

computing functions move towards the cloud and others

remain based on personal computers.

Courtesy: Janna Quitney Anderson, Elon University and Lee Rainie, Pew Internet & American Life Project

(June 11, 2010)

Documents

Cloud Computing - Xploreraj