Why Is Cloud Computing?

Cloud computing has recently emerged as a ground-breaking model for hosting and delivering services over the Internet. This paradigm is engaging to business organizations since it removes the need for users to plan ahead for provisioning and enables enterprises to start from minimal and increase resources only when there is an increase in demand for service. However, the deployment and implementation of cloud computing for enterprises has been characterized with various challenges and security concerns. In essence, the successful deployment and cloud computing in an enterprise needs proper planning and understanding of the various emerging threats, risks, vulnerabilities, and potential counter-measures. As there are top five challenges in cloud computing for the enterprise, there are various available solutions with varying benefits and limitations, which necessitate the development of a new solution.

Cloud computing models has become the paradigm in more and more organizations. Organizations have realized and assessed both advantages and disadvantages and are willing to adopt it to their information security posture. Reduction in overhead cost is the greatest advantage that organizations look for and cloud computing allows for this. Disaster recovery is another

This business case investigation discusses in depth about the process of virtualization of servers in an organization and the various benefits of doing so. Giving a brief introduction to the concept of virtualization, it was introduced in the late 1960s when the resources of mainframe computers were divided between several applications. [1] The term virtualization has since then been expanded in terms of practical application. The conversion of the physical server into a pool containing several virtual machines which act individually as one computer is known is hardware virtualization.

Enterprise Resource Planning (ERP) is a business management software that allows an organisation to integrate data across all of their applications. This assists them to manage the business process and automate the functions related to technology. (Motiwalla et. al., 2012) On-premises was the only ERP deployment method until cloud ERP came along. On-premises deployment methods are internally hosted and maintained by the company. They involve a high initial investment, if the organisation doesn’t have an IT department or IT experts. They have to invest money for IT departments/staff training, and maintaining the ERP system, which includes hardware, servers, and networks. When an ERP upgrade comes, IT department has to redeploy their ERP according to their previous customisation. This process is time consuming and requires a hugheffort, if the upgradeto the ERP is to be successful. Because of these reasons, most Small and

providers that act as a significant barrier in the adoption of cloud in the IT industry. In this

of the cloud such as failed servers and an overload of data. This report will focus on the privacy

“Cloud Computing‟ is the next natural step in the evolution of on-demand information technology services and products. To a large extent Cloud Computing will be based on virtualized resources” [2].

Since, last few decades It has been observed as, At the point when beginning a business, servers, software, hardware can be a critical cost. To overcome this limitation numerous organizations are moving towards cloud computing technology.

Drawbacks and impact of the migration to a cloud based environment also should be analyzed and the best practice for system migration is emphasized and explained.

(Kaur and Pandey 2015) [8] Migration is also critical while cloud computing is considered. Various techniques of VM migration is described by the use of proposed paper. Pre-Copy and post copy mechanisms are described briefly in this paper. Downtime and migration time is considered as parameter in this case.

The use of cloud computing expands the risk of insider access not only to the staff of cloud service company but also the consumers of the cloud services. A good example can be drawn from the denial of service attack launched by a malicious insider as demonstrated by a well-known Infrastructure as a Service (IaaS) cloud infrastructure (Sense Post: , 2009).

Cloud servers and applications are a great option to optimize IT performance without the huge costs associated with purchasing and managing a fully dedicated infrastructure. Many small and mid-sized businesses, and those with variable demands and workloads, find that cloud servers and application meet their needs effectively. Cloud servers can be configured to provide levels of performance, security, and control like those of a dedicated server. But instead of being hosted on physical hardware that’s solely dedicated to a task, they reside in a shared “virtualized” environment that’s managed by cloud hosting provider. Company benefit from the economies of scale of sharing hardware with other customers. With cloud servers, only payment

Cloud computing services have been widely accepted by many business ventures mainly because of its positive benefits. It enables economics of scale by enabling allocation of data on demand when necessary unlike in the traditional model, this reduces cost of operation. Virtualization fits as the backbone of cloud computing. It involves creation of external version/ platform similar to original where one can carry out tasks similar to those of an original platform on the host computer. The host computer is one on which virtualization takes place (Rountree & Castrillo, 2014).

Migration of data, applications from traditional data centers to the cloud has been calling the attention to many corporations and analysts.

Migrating software platforms and data information for a cloud environment is paramount for a company not only to avoid loss of data, but it will bring also future benefits: reduce IT internal area necessities (people and investments) and the timing necessary to restart the