Cloud Computing Paradigms And Practices

Cloud computing is an emerging model where users can gain access to their applications from anywhere through their connected devices. A simplified user interface makes the infrastructure supporting the applications transparent to users. The applications reside in massively-scalable data centers where compute resources can be dynamically provisioned and shared to achieve significant economies of scale. A strong service management platform results in near-zero incremental management costs when more IT resources are added to the cloud. The proliferation of smart mobile devices, high speed wireless connectivity, and rich browser-based Web 2.0 interfaces has made the network-based cloud computing model not only practical but

The Important of Cloud Computing is increasing and it is receiving a growing attention in Scientific & Industrial Communities. Cloud computing is one of the top 10 most important technologies and has a greater possibility in successive years by companies and organizations. Cloud computing implement everywhere, favourable, on demand network access to a shared pool of configurable computing resources (e.g. networks, servers, storage, applications and servers) that can be immediately supply and released with minimal management effort.

From the CSP view point, demanded services should be serve in time and the manner of allocation of resources must be fair. From customer view point demanded services should meet its QoS requirements and must satisfy their needs. Form energy saving view point, cloud carrier which provides access via network, should use available bandwidth efficiently.

Cloud computing provides computing architecture, which is dynamic in nature and can evaluate performance behavior as well as other infrastructure challenges. This paper focuses on workload balancing workload balancing of cloud instances and also tells about the tools that evaluate performances. It tells that their proposed mechanism schedules the starting and shutting down of the VM instances automatically and allows the cloud instances to finish the assigned jobs within the deadline and within the price range. [4]

Both cloud computing and sustainability are emerging as transformative trends in business and society. Most consumers (whether they are aware of it or not) are already heavy users of cloud-enabled services, including email, social media, online gaming, and many mobile applications.

System performance is one of the most important metrics to measure system efficiency. Organizations that need high-performance computing such as scientific ones can use cloud computing to perform their tasks faster. In the cloud there are many machines works together in parallel to provide high processing speed. Now, most of organizations use only 15 percent of their machines capacity. Moreover, cloud computing provides services for data-intensive applications such as data mining. Salesforce.com which provides cloud CRM applications says that the performance is faster five times comparing to traditional cline-server infrastructure.

The aim of this research is to study the contributions of green cloud computing in reducing the wastage of energy and the operational cost in datacentres hosting cloud services and thereby acquiring the environmental sustainability. The study also considers the benefits that can be gained by both service providers and users by having their services going green.

Abstract: Cloud computing is an efficient and highly scalable technology that enables enterprise information, software applications and web applications to be stored and executed from a remote infrastructure. It is a highly cost-effective infrastructure that runs on highly optimized and fabricated hardware. Since its inception the demand is constantly growing in the software and tech industry which has led to a drastic increase in the energy consumption of data centers and other hosting sites. High power consumption not only contributes to high operational cost but also leads to high carbon emissions which not environment friendly. Thus energy efficient hardware and software solutions are in need to mitigate the harmful effects of Cloud computing technology on environment. In order to design a power efficient system for Cloud infrastructure, thorough analysis of the Cloud computing needs to be done and that knowledge has to be mapped to low level platform developers, network engineers, hardware manufacturers and software engineers. A comprehensive design after considering all the factors and elements of Cloud computing and its application would achieve an environment friendly system.

Cloud computing is also quite flexible in terms of server capacity as you can scale up or down when your needs fluctuate (“Advantages and Disadvantages of Cloud Computing”).

Abstract. Cloud computing is the upcoming generation of computation. Internet based computing is known as cloud computing, where software and hardware resources provided to the user on demand. Cloud computing is new paradigm that uses dynamically scalable shared resources e.g. networks, servers, storage, applications and services. It provides different cloud services through which resources can be swiftly providing and released with minimum management efforts. In this paper, we aim to pinpoint the types of cloud, services and difference that shows how effective cloud computing from other paradigm (Grid computing, Utility computing and Mainframe). Last, we will provide an overview on the various challenges and risk associated to cloud computing that deserves future research.

The Rapid Elasticity is the most important feature in cloud. In this, the resources are made available and released as and when required automatically based on set triggers or parameters. This makes sure that the application has the required capacity available at any point of time. Elastic computing is an important trait critical to cost reductions. Resources often appear to be unlimited to the consumer and that they can be purchased in any quantity at any time.

Large providers which have a vast number of resources are able to utilize their resources in a very efficient way. Furthermore public IaaS resources are utilized more efficient than private computer resources in average. Useful management approach for elastic virtual clusters, provide the capacity and environment according to specific requirements without the need to buy or use own hardware and software.

Cloud systems are not just another form of resource provisioning infrastructure and in fact, have multiple opportunities from the principles for cloud infrastructures that will enable further types of applications, reduced development and provisioning time of different services. Cloud computing has particular characteristics that distinguish it from classical resource and service provisioning environments.

ABSTRACT: The operating cost of the data centers can be decreased by reducing the energy consumption. By implementing various allocation policies of virtual machine allocation in cloud computing the total energy consumption can be reduced up to 14% and total monetary energy costs can be lowered by up to 26%.

Cloud Computing appears as a computational paradigm as well as a distribution architecture and its main objective is to provide secure, quick, convenient data storage and net computing service, with all computing resources visualized as services and delivered over the Internet [2,3]. The cloud enhances collaboration, agility, scalability, availability, ability to adapt to fluctuations according to demand, accelerate development work, and provides potential for cost reduction through optimized and efficient computing [4].As the data