Cloud Computing : An Open Source Cloud Simulation Tool

The focus of cloud computing is providing with scalable and a cheap on-demand computing infrastructure with a good quality of service levels. The process of the cloud computing involves a set of network enabled services that can be accessed in a simple and general way. Cloud computing provides with a unique value proposition for any organization to outsource their information and communication technology infrastructure. Moreover, the concept itself provides with a value proposition for an organization as using the cloud saves on cost, resources, and staff, and business opportunities for the organization (Katzan). An extensive connectivity of

Cloud computing is a one of the most talked of topics in the field of Information Technology in recent times (Keyun, Joe, Taha, & Ibrahim, 2013). This subject area of cloud computing basically is a term used to describe computer resources available as a service accessible over a network (Darren & Kim-Kwang, 2013). The National Institute of Standards and Technology (NIST) define cloud computing as a model for enabling ubiquitous, convenient, on-demand network access on a shared pool of configurable computing resources (e.g. networks, servers, storage, applications and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction (Peter & Timothy, 2011). Due to the attractive nature of the model there has been rise in the use of cloud computing. Gartner, an IT research and consulting firm, says that cloud computing is growing will become the bulk of IT spend by 2016 (Gartner, 2013).

Cloud computing Ananda Gowri Sankar Krishna Mangena Wilmington university SEC-6040 October 13 2014 Instructor-Dr.Deval Shah TABLE OF CONTENTS: 1. Introduction...................................................................................................... 4 2.Technologies..................................................................................................... 4 2.1 Virtualization..............................................................................................4 2.2 Service oriented architecture......................................................................

Cloud computing has set a trend in the information technology arena that has sparked the interest of all who utilize the internet on purpose and unsuspectingly. Initially, the primary purpose of cloud computing was to provide a centralized data bank that organizations could use for quick data access. Its use has been quickly adapted, however, beyond business use to become the first option for personal use. The advantages and disadvantages of implementing such a shift from business to personal are varied, yet, statistically, according to the CISCO Global Cloud Index: Forecast and Methodology, 2014-2019 White Paper, its public use is on the rise. The report notes that “by 2019, 56 percent of the cloud workloads will be in public cloud data centers, up from 30 percent in 2014 and by 2019, 44 percent of the cloud workloads will be in private cloud data centers, down from 70 percent in 2014”. Though disadvantages with regard to data security is prominent, users have deemed that its implementation will still promote greater benefits than loss.

In the current business world, organizations depend on cloud computing as a strategy of delivering IT services to clients. Cloud based platforms provide cost effective ways for organizations to maintain a high level of reliability and availability for applications. Cloud computing promotes business continuity and helps in organizations during disaster recovery (Molen & Brace, 2010).

Cloud computing combines several computing concepts, all geared towards provisioning of hosted services over an internet connection. By leveraging this technology, organizations have been relieved of the challenging, complex and often

Modern cloud computing is a delivery system for computing services either for free, or on a pay-as-you-go basis. In this system, users utilize the Internet and remote data centers to run applications and store data. Cloud technology can allow more efficient computing by removing most of the upfront costs of setting up an IT infrastructure. It also allows organizations to expand or reduce their computing facilities very quickly. Increasingly, cloud computing is perceived as a big step toward the long-held dream of computing as a managed utility similar to cable TV or electricity.(Buyya et al, 2010) Cloud computing can be defined by certain criteria. These features are what make cloud computing an attractive option for modern organizations.

The national institute of standards and technology (NIST) defines cloud computing as “a model that is meant to enable convenient access to a network that is on demand to a pool of shared computing resources that are configurable” (Jansen & Timothy, 2015). Computer system resources includes, but not limited to, storage, system servers, applications, services, and networks. Cloud computing allows these computing resources to be accessed virtually anytime, anywhere. Cloud computing opens up new possibilities in the field of information technology that many of us have or will experience. As the clients or the customers are very excited about the numerous opportunities that come along with the cloud computing technology such as a reduction in the costs of capital, and the opportunity of divesting themselves of management of infrastructure, and a massive focus on the core competencies, and most importantly, the agility that is usually offered by the provision of computing that is on-demand, there are challenges and other numerous issues that need to be looked into and addressed before a universal adoption might happen (Jansen & Timothy, 2015).

The report discusses such aspects of cloud computing as its characteristics, deployment models and service models as well as the drivers and challenges of cloud adoption. It also summarizes key differences between cloud computing and traditional IT environments.

The Cloud Computing is one of the fastest growing technology that attracts researchers to add and improve its services [1][7]. Organizations benefit from this technology by replacing traditional IT hardware and data centers with remote, on-demand paid hardware and software services, that are configured for their particular needs, managed and hosted by the organization users or even a third party. This increases the organization’s flexibility and efficiency, without the need to have a dedicated IT staff or owning special hardware equipment or software licenses.

Cloud Computing has been a buzz world in the past few years. The use of this technology increased considerably when we made huge progress in this domain, reducing the cost for everyone. Today, Cloud Computing is widely used all across the world by a lot of companies such as Microsoft, Facebook, Amazon, etc…

Cash-strapped organizations look for alternatives which can reduce their capital investments involved in purchasing and maintaining IT hardware and software so that they can get maximum benefits of IT. Cloud computing (CC) becomes a natural and ideal choice for such organizations and customers. Cloud computing takes benefit of many technologies such as server consolidation, huge and faster storage, grid computing, virtualization, N-tier architecture and robust networks. It delivers highly scalable and expensive infrastructure with minimal set up and negligible maintenance cost. It provides IT-related services such as Software-as-a-Service, Development Platforms-as-a-Service and Infrastructure-asa-Service over the network on-demand anytime from anywhere on the basis of “pay-as-you-go" model. It is a fast growing concept changing the IT related perceptions of its users. Elasticity, scalability, high availability, priceper-usage and multi-tenancy are the main features of Cloud computing. It reduces the cost of using expensive resources at the provider’s end due to economies of scale. Quick provisioning and immediate deployment of latest applications at lesser cost are the benefits which force people to adopt Cloud computing. Cloud computing has brought a paradigm shift not in the technology landscape, but also in the database landscape. With more usage of Cloud computing,

Abstract – Cloud computing is a type of computing that relies on sharing a pool of physical and/or virtual resources (e.g., networks, servers, storage, applications and services), rather than deploying local or personal hardware and software. This technology is mainly service oriented and focuses on cost reduction, hardware reduction and pay just for service concept. Virtualization in cloud computing is making a virtual image of the storage devices servers or network resources so that they can be used on multiple machines at the same time.

As previously mentioned, cloud computing has recently emerged as a pioneering model for hosting and distributing services over the Internet. Actually, the model entails sharing resources on a huge scale through a value effective and location independent process. While the resources on the cloud are deployed by the seller, they are utilized by the consumer (Belamkar, 2014). Cloud computing is very beneficial to organizations and companies because it is engaging to business organizations

The growth of cloud services has begun a transition of companies to partially or completely move services and abandon on-site data centers in favor of a cloud based solution. This movement has become a phenomenon for businesses; however, before a business implements any type of cloud solutions it must consider several things.