1. Introduction
Global cloud computing market is expected to grow rapidly due to its efficiency and innovativeness. This technology has been regarded as one of the top priorities for businesses to be efficient in terms of cost cutting, resource utilisation, employee communication, etc (Carcary, 2014). It is forecasted by Analyst group Forrester that the cloud computing market is predicted to increase from £22.5bn in 2011 to approximately £96.6bn by 2020.
The definition of cloud computing from US National Institute of Standards and Technology (NIST) is one of the most widely and frequently known; “A model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g. networks, servers, storage, applications, and services) that can be rapidly
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Cloud Computing
2.1 Advantages
IaaS
Since it becomes easier and more efficient to gain access to its system through cloud computing, improvement on resource utilisation can be achieved by adopting cloud technology. This might lead workers to concentrate on vital skills and competencies rather than maintenance work and inessential skills (Neves et al., 2011; Pyke, 2009).
Companies with IaaS, have flexibility of scale of its servers, storage, and operating system. This service suits for companies with significant spikes on the application usage. The infrastructure can be scaled up and down very quickly when there is a rapid change in demand. This creates great flexibility and ideal usage of resources.
IaaS Cloud Vendors are experts on security. It is logical to think that they offer much highly reinforced security service compared to in-house security, since security is crucial for Cloud Provider.
PaaS
The company could save time on developing and deploying applications with PaaS, since it provides the platform that software can be built on. Saving in time could be achieved from service provided on installing and load balancing, storage, and so
The idea of accessing, storing, and processing data from online server or virtual server instead of local server is called as Cloud computing. When we store data in our hard disk which is very near to computer that is called as local storage and computing but Cloud computing doesn’t access data from our hard disk.
The PaaS method cloud infrastructure has saved companies millions of dollars. One downfall that the PaaS structure has is that every company relies on the PaaS also relies upon the uptime of the vendor providing the service. If a vendor goes down then depending on how bad it is can put each company using their service at a potential financial loss.
Cloud is the result of a decade research in the field of distributing computing , utility computing, virtualization , grid computing and more recently software, network services and web technology which is changeable evolution on demanding technology and services also as looking to the rapid growth of cloud computing which have changed the global computing infrastructure as well as the concept of computing resources toward cloud infrastructure. The important and interest of cloud computing increasing day by day and this technology receives more and more attention in the world (Jain, 2014) the mostly widely used definition of cloud computing is introduced by NIST “as a model for enabling a convenient on demand network access
Virtualization is a technology that creates an abstract version of a complete operating environment including a processor, memory, storage, network links, and a display entirely in software. Because the resulting runtime environment is completely software based, the software produces what’s called a virtual computer or a virtual machine (M.O., 2012). To simplify, virtualization is the process of running multiple virtual machines on a single physical machine. The virtual machines share the resources of one physical computer, and each virtual machine is its own environment.
This approach is significantly better than the traditional way, in which a company buys rackmount servers, and networking equipment, as virtual hardware can be repurposed and reused, unlike physical hardware, where new servers have to be bought when the app needs to be scaled to handle a higher load. This approach can also be used to have multiple low end machines work together to get the processing power and storage of a high end computer for a much lower price. Networking, in particular, costs much less money as everything is virtual and there is no physical networking hardware, and OpenStack creates a mesh-like network.
It a company grows more rapidly than predicted, it may experience problems. Anticipating expected and even unexpected growth is crucial to building scalable systems that can support that development. High availability occurs when a system is continuously operational at all times. A highly available enterprise architecture is crucial to current operations because it is convenient for the company to access their systems whenever they want from wherever. If a company was not highly available, it may be challenging for people to access a system because it may prevent some from operating smoothly and slow down growth.
Cloud computing is defined by experts as a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications. The meaning behind the word cloud is that it is a metaphor for the entire online web and its data as well. A cloud service differs from traditional hosting in three different ways. These three differences are that cloud computing is elastic, it is sold on demand, and the service is managed by the provider of the cloud. The easiest way to explain what cloud computing does is that it stores and gives access to different data and programs over the internet rather than just your computer’s hard drive. For it to be actually considered cloud computing it must include data or programs over the internet. Cloud computing can be done anytime, anywhere with an online connection.
Even though cloud computing is still an emerging technology there are many benefits to our organization by adopting this technology. For instance, the reduction of operational cost, the ability to access data from any network and device, and the ability to upgrade and downgrade with ease whenever needed. Looking at the statistical data from companies that have adopted this technology, I think Partners in Heath should adopt Cloud computing. It think it is the perfect technology to solve our financial problems, as well as adding several benefits mentioned earlier.
To understand how cloud computing can be of value to an organization, it is important to us that we understand the cloud and its components. There are three different types of cloud computing services referred to as Infrastructure as a Service (IaaS), Software as a Service (SaaS) and Platform as a Service (PaaS). IaaS delivers cloud computing infrastructure servers, storage, network and operating systems as an on-demand service. SaaS is about software deploying over the Internet. PaaS allows a creation of web applications without the complexity of buying and maintaining the software and infrastructure. In this paper, I will suggest that Innovartus Technology Inc should use IaaS as a replacement for PaaS because IaaS is a rapidly developing field with resources such as better services, cost variability, utility pricing model and dynamic scaling.
Cloud computing is able to increase the speed of business. Cloud computing offers the speed to make computing resources on an instance basis, not just need to first survey time and skilled resources in design and implement infrastructure and applications to deploy and test it. Cloud computing can engance revenue, share bigger market, or other advantages.
...Implementation of cloud systems can be implemented in stages with costs that coincide with usage. The ROI outweighs the issues or problems that could occur. Cloud computing gives a competitive advantage of being able to keep up with changes in technology without having the cost involved. Amazons cloud computing allowed companies like Ericsson to remain competitive and thrive.
The cloud computing is the practice that enables access to the shared pool of configurable computing resources which can be dynamically provisioned. It refers to both the applications delivered as service as well as hardware and system software in the data centres that provide those services. The attractive features of cloud computing such as on-demand access, high scalability, reliability, cost savings, low maintenance and energy efficiency bring benefits to both cloud service consumers and providers.
The inception of Cloud Computing could be traced back to 1950s when large scale mainframe computers were being utilised for only communication purposes with no processing capacities. Within a short span of time, the proliferation of technology has taken Cloud Computing into a new era where no one has ever thought or imagined before. It seems to be limitless, some even says addictive. It is like taking steroid to enhance your personnel well-being, corporate performance, productivity and growth depending on which perspective that you are coming from.
Cloud storage basic terms, is a way to save information to the web that can managed data storage. Cloud computing services are online services, which store this information to a safe and secure location online. It’s offered a quicker, easier and safer backup than conventional methods of file storage such as bookshelves or cardboard files.
In cloud computing, the word cloud is used as a metaphor for “the internet”. So the cloud computing means “a type of internet-based computing”, where different services such as servers, storage and applications are delivered to an organization’s computers and devices through the internet.