ORIENTAL GROUP OF INSTITUTES FESTIVAL

2012THAKRAL COLLEGE OF TECHNOLOGY

PAPER PRESENTATION

ON

CLOUD COMPUTING

SUBMITTED BY- SWAPNIL DUBEYRADHIKA SHRIVASTAVACSE-B , 2ND SEMESTER

Traditional server concept

The Traditional Server Concept

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Web Server

Windows

IIS

App Server

Linux

Glassfish

DB Server

Linux

MySQL

EMail

Windows

Exchange

THE TRADITIONAL SERVER CONCEPT

• SYSTEM ADMINISTRATORS OFTEN TALK ABOUT SERVERS AS A WHOLE UNIT THAT INCLUDES THE HARDWARE, THE OS, THE STORAGE, AND THE APPLICATIONS.

• SERVERS ARE OFTEN REFERRED TO BY THEIR FUNCTION I.E. THE EXCHANGE SERVER, THE SQL SERVER, THE FILE SERVER, ETC.

• IF THE FILE SERVER FILLS UP, OR THE EXCHANGE SERVER BECOMES OVERTAXED, THEN THE SYSTEM ADMINISTRATORS MUST ADD IN A NEW SERVER.

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THE TRADITIONAL SERVER CONCEPT

• Unless there are multiple servers, if a service experiences a hardware failure, then the service is down.

• System Admins can implement clusters of servers to make them more fault tolerant. However, even clusters have limits on their scalability, and not all applications work in a clustered environment.

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VIRTUAL SERVER CONCEPT

VIRTUALISATION

CLOUD COMPUTING

DEFINITION

CLOUD COMPUTING is the delivery of computing as a service rather than a product, whereby shared resources software and information are provided to the computers and other devices over a network.

Cloud is a large group of interconnected computersCloud here is actually a metaphor of internet

Cloud computing architecture

*. Cloud computing can be divided into two sections1. Front end2. back end

*. Front end includes client computers*. Back end is the cloud section of the system*. The administrator uses a set of rules called protocols and uses special kind of softwares called middleware for smooth running and traffic control*. Middleware allows networked computers to communicate with each other.

CLOUD COMPUTING ARCHITECTURE

CLOUD COMPUTING SERVICES

Cloud computing providers offer their services according to three fundamental models

• Infrastructure as a service (IaaS)• platform as a service (PaaS)• software as a service (SaaS)

CLOUD COMPUTING SERVICES

CLOUD COMPUTING SERVICESIAAS- In this most basic cloud service model, cloud providers offer computers – as physical or more often as virtual machines –, raw (block) storage, firewalls, load balancers, and networks. Cloud providers typically bill IaaS services on a utility computing basis

PAAS- In the PaaS model cloud providers deliver a computing platform and/or solution stack typically including operating system, programming language execution environment, database, and web server.

SAAS- In this model, cloud providers install and operate application software in the cloud and cloud users access the software from cloud clients.

CLOUD COMPUTING SERVICES

ADVANTAGES1.Access you data all the times2.A physical storage centre is no longer needed3.Most have a pay structure that only calls for payment when used4.Relieves burden on IT proffesssional and frees up their time in office5.Easily scalable so companies can add or substract resources based on their own needs

DISADVANTAGES1.Less control comes with handling over your data and information2.Dependence on a third party to ensure security and confidentiality of data and information3.Long term dependence on cloud host or maintainance o your information

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ADVANTAGES AND DISADVANTAGES

APPLICATIONS

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.