More often than not, a “cloud” refers to an “Infrastructure-as-a-Service” (IaaS) cloud, such as Amazon EC2, where IT infrastructure is deployed in a cloud provider’s datacenter in the form of virtual machines. With the growing popularity of IaaS clouds, an ecosystem of tools and technologies is emerging that can transform an organization’s existing infrastructure into a private cloud or a hybri...

As the global recession has made it more difficult for companies to invest in IT, cloud computing have emerged as a new paradigm in the business IT as green IT. Among several types of cloud services, the Infrastructure as a Service (IaaS) solution is used by many companies in Korea. The Technology Acceptance Model(TAM) and extended model have been popularly utilized for examining how users come...

Infrastructure as a Service (IaaS) is one of the three important fundamental service models provided by cloud computing. It provides users with computing resource and storage resource in terms of virtual machine instances. Because of the rapid development of cloud computing, more and more application systems have been deployed on the IaaS cloud computing platforms. Therefore, once anomalies inc...

In this paper we consider the Infrastructure-as-a-Service (IaaS) cloud model which allows cloud users to run their own virtual machines (VMs) on available cloud computing resources. IaaS gives enterprises the possibility to outsource their process workloads with minimal effort and expense. However, one major problem with existing approaches of cloud leasing, is that the users can only get contr...

Infrastructure as a Service (IaaS) is one of the most significant and fastest growing fields in cloud computing. To efficiently use the resources of an IaaS cloud, several important factors such as performance, availability, and power consumption need to be considered and evaluated carefully. Evaluation of these metrics is essential for cost-benefit prediction and quantification of different st...

With the increasing maturity of various cloud service delivery models ( Software as a Service (SaaS), Platform as a Service (PaaS), Infrastructure as a Service (IaaS)) and deployment models (Private, Community, Public, Hybrid), the security risk profile of each cloud service configuration is coming into focus. In this paper, we take up the example of a Public Infrastructure as a Service (Iaas) ...

As the most basic cloud service model, Infrastructure as a Service (IaaS) has been widely used for serving the evergrowing computing demand due to the prevalence of the cloud. Using pools of hypervisors within the cloud, IaaS can support a large number of Virtual Machines (VMs) and scale services in a highly dynamic manner. However, it is well-known that the VMs in IaaS are vulnerable to co-res...

Infrastructure as a Service (IaaS) is a rapidly expanding model of cloud computing. It includes control of computing resources, such as memory, computing power and storage capacity, satisfying the most fundamental IT needs for businesses on a usage-based payment model. Currently, there is an increased demand for IaaS services, which in turn feeds competition among cloud providers. As the price ...

Cloud computing data centres are emerging as new candidates for replacing traditional data centres. Cloud data centres are growing rapidly in both number and capacity to meet the increasing demands for highly-responsive computing and massive storage. Making the data centre more energy efficient is a necessary task. In this paper, we focus on the organisation’s internal Infrastructure as a Servi...

Cloud Computing represents a new computing model that poses many demanding security issues at all levels, e.g., network, host, application, and data levels. The variety of the delivery models presents different security challenges depending on the model and consumers’ Quality of Service (QoS) requirements. Confidentiality, Integrity, Availability, Authenticity, and Privacy are essential concern...