10-03-2011, 12:44 PM
presented by:
G.NAVEEN
Y.ANUSHA
[attachment=9940]
ABSTRACT:
With the significant advances in Information and Communications Technology over the last half century, there is an increasingly perceived vision that computing will one day be the 5th utility (after water, electricity, gas,and telephony). This computing utility, like all other four existing utilities, will provide the basic level of computing service that is considered essential to meet the everyday needs of the general community. To deliver this vision, a number of computing paradigms have been proposed, of which the latest one is known as Cloud computing.Cloud computing promises to increase the velocity with which applications are deployed, increase innovation,and lower costs, all while increasing business agility. Everyone has an opinion on what is cloud computing, It can be the ability to rent a server or a thousand servers and run a geophysical modeling application on the most powerful systems available anywhere. It can be the ability to rent a virtual server,load software on it, turn it on and off at will, or clone it ten times to meet a sudden workload demand. It can be storing and securing immense amounts of data that is accessible only by authorized applications and users. Cloud computing can be the ability to use applications on the Internet that store and protect data while providing a service anything including email,sales force automation and tax preparation. It can be using a storage cloud to hold application, business, and personal data. And it can be the ability to use a handful of Web services to integrate photos, maps, and GPS information to create a mashup in customer Web browsers.Cloud computing increases profitability by improving resource utilization. Pooling resources into large clouds drives down costs and increases utilization by delivering resources only for as long as those resources are needed. Cloud computing allows individuals, teams, and organizations to streamline procurement processes and eliminate the need to duplicate certain computer administrative skills related to setup, configuration, and support.This paper introduces the value of implementing cloud computing and explains the business benefits of cloud computing, and outlines cloud architecture and its major components.
INTRODUCTION:
Building on established trends
Cloud computing builds on established trends for driving the cost out of the delivery of services while increasing the speed and agility with which services are deployed. Cloud computing incorporates virtualization, on-demand deployment, Internet delivery of services, and open source software. From perspective, everything is new because cloud computing changes how we invent, develop, deploy, scale, update,maintain, and pay for applications and the infrastructure on which they run. In this chapter, we examine the trends and how they have become core to what cloud computing is all about.
The Nature of Cloud Computing:
Virtual machines as the standard deployment object
Over the last several years, virtual machines have become a standard deployment object. Virtualization further enhances flexibility because it abstracts the hardware to the point where software stacks can be deployed and redeployed without being tied to a specific physical server. Virtualization enables a dynamic datacenter where servers provide a pool of resources that are harnessed as needed, and where the relationship of applications to compute, storage, and network resources changes dynamically in order to meet both workload and business demands. Using virtual machines as deployment objects is sufficient for 80 percent of usage, and it helps to satisfy the need to rapidly deploy and scale applications.
The on-demand, self-service, pay-by-use model:
The on-demand, self-service, pay-by-use nature of cloud computing is also an extension of established trends. From an enterprise perspective, the on-demand nature of cloud computing helps to support the performance and capacity aspects of service-level objectives. The self-service nature of cloud computing allows organizations to create elastic environments that expand and contract based on the workload and target performance parameters. And the pay-by-use nature of cloud computing may take the form of equipment leases that guarantee a minimum level of service from a cloud provider. IT organizations have understood for years that virtualization allows them to quickly and easily create copies of existing environments sometimes involving multiple virtual machines to support test,development, and staging activities. This lightweight deployment model has already led to a “Darwinistic” approach to business development where beta versions of software are made public and the market decides which applications deserve to be scaled and developed further or quietly retired. Cloud computing extends this trend through automation. machines and establish network relationships between them. Instead of requiring a long-term contract for services
with an IT organization or a service provider, clouds work on a pay-by-use, or payby- the-sip model where an application may exist to run a job for a few minutes or
hours, or it may exist to provide services to customers on a long-term basis. The ability to use and pay for only the resources used shifts the risk of how much infrastructure to purchase from the organization developing the application to the cloud provider
APPLICATIONS:
Another consequence of the self-service, pay-by-use model is that applications are composed by assembling and configuring appliances and open-source software as much as they are programmed.
Applications and architectures that can be refactored in order to make the most use of standard components are those that will be the most successful in leveraging the benefits of cloud computing.
Likewise, application components should be designed to be composable by building them so they can be consumed easily. This requires having simple, clear functions, and well-documented APIs.
Building large, monolithic applications is a thing of the past as the library of existing tools that can be used directly or tailored for a specific use becomes ever larger..
G.NAVEEN
Y.ANUSHA
[attachment=9940]
ABSTRACT:
With the significant advances in Information and Communications Technology over the last half century, there is an increasingly perceived vision that computing will one day be the 5th utility (after water, electricity, gas,and telephony). This computing utility, like all other four existing utilities, will provide the basic level of computing service that is considered essential to meet the everyday needs of the general community. To deliver this vision, a number of computing paradigms have been proposed, of which the latest one is known as Cloud computing.Cloud computing promises to increase the velocity with which applications are deployed, increase innovation,and lower costs, all while increasing business agility. Everyone has an opinion on what is cloud computing, It can be the ability to rent a server or a thousand servers and run a geophysical modeling application on the most powerful systems available anywhere. It can be the ability to rent a virtual server,load software on it, turn it on and off at will, or clone it ten times to meet a sudden workload demand. It can be storing and securing immense amounts of data that is accessible only by authorized applications and users. Cloud computing can be the ability to use applications on the Internet that store and protect data while providing a service anything including email,sales force automation and tax preparation. It can be using a storage cloud to hold application, business, and personal data. And it can be the ability to use a handful of Web services to integrate photos, maps, and GPS information to create a mashup in customer Web browsers.Cloud computing increases profitability by improving resource utilization. Pooling resources into large clouds drives down costs and increases utilization by delivering resources only for as long as those resources are needed. Cloud computing allows individuals, teams, and organizations to streamline procurement processes and eliminate the need to duplicate certain computer administrative skills related to setup, configuration, and support.This paper introduces the value of implementing cloud computing and explains the business benefits of cloud computing, and outlines cloud architecture and its major components.
INTRODUCTION:
Building on established trends
Cloud computing builds on established trends for driving the cost out of the delivery of services while increasing the speed and agility with which services are deployed. Cloud computing incorporates virtualization, on-demand deployment, Internet delivery of services, and open source software. From perspective, everything is new because cloud computing changes how we invent, develop, deploy, scale, update,maintain, and pay for applications and the infrastructure on which they run. In this chapter, we examine the trends and how they have become core to what cloud computing is all about.
The Nature of Cloud Computing:
Virtual machines as the standard deployment object
Over the last several years, virtual machines have become a standard deployment object. Virtualization further enhances flexibility because it abstracts the hardware to the point where software stacks can be deployed and redeployed without being tied to a specific physical server. Virtualization enables a dynamic datacenter where servers provide a pool of resources that are harnessed as needed, and where the relationship of applications to compute, storage, and network resources changes dynamically in order to meet both workload and business demands. Using virtual machines as deployment objects is sufficient for 80 percent of usage, and it helps to satisfy the need to rapidly deploy and scale applications.
The on-demand, self-service, pay-by-use model:
The on-demand, self-service, pay-by-use nature of cloud computing is also an extension of established trends. From an enterprise perspective, the on-demand nature of cloud computing helps to support the performance and capacity aspects of service-level objectives. The self-service nature of cloud computing allows organizations to create elastic environments that expand and contract based on the workload and target performance parameters. And the pay-by-use nature of cloud computing may take the form of equipment leases that guarantee a minimum level of service from a cloud provider. IT organizations have understood for years that virtualization allows them to quickly and easily create copies of existing environments sometimes involving multiple virtual machines to support test,development, and staging activities. This lightweight deployment model has already led to a “Darwinistic” approach to business development where beta versions of software are made public and the market decides which applications deserve to be scaled and developed further or quietly retired. Cloud computing extends this trend through automation. machines and establish network relationships between them. Instead of requiring a long-term contract for services
with an IT organization or a service provider, clouds work on a pay-by-use, or payby- the-sip model where an application may exist to run a job for a few minutes or
hours, or it may exist to provide services to customers on a long-term basis. The ability to use and pay for only the resources used shifts the risk of how much infrastructure to purchase from the organization developing the application to the cloud provider
APPLICATIONS:
Another consequence of the self-service, pay-by-use model is that applications are composed by assembling and configuring appliances and open-source software as much as they are programmed.
Applications and architectures that can be refactored in order to make the most use of standard components are those that will be the most successful in leveraging the benefits of cloud computing.
Likewise, application components should be designed to be composable by building them so they can be consumed easily. This requires having simple, clear functions, and well-documented APIs.
Building large, monolithic applications is a thing of the past as the library of existing tools that can be used directly or tailored for a specific use becomes ever larger..
