The electric power is one of the major operating expenses in data centers. Rising and varying energy costs induce the need of further solutions to use energy efficiently. The first steps to improve efficiency have already been accomplished by applying virtualization technologies. In this paper, we address the problem of energy efficiency in data centers. Efficient and scalable power usage for d...

Network Function Virtualization (NFV) virtualizes software network functions to offer flexibility in their design, management and deployment. Although GPUs have demonstrated their power in significantly accelerating network functions, they have not been effectively integrated into NFV systems for the following reasons. First, GPUs are severely underutilized in NFV systems with existing GPU virt...

Nowadays, more stringent compliance regulations, businesses of all sizes are required to implement security measures to ensure their systems and data are readily available and quickly recoverable. Virtualized clustering is inherently designed for maximum data integrity and minimal recovery time in the case of site failure. Virtualization allows multiple operating system instances to run concurr...

Virtualization has rapidly become a go-to technology for increasing efficiency in the data center. With virtualization technologies providing tremendous flexibility, even disparate architectures may be deployed on a single machine without interference. Awareness of limitations and requirements of physical hosts to be used for virtualization is important. This paper reviews the present virtualiz...

Data centers form a key part of the infrastructure upon which a variety of information technology services are built. They provide the capabilities of centralized repository for storage, management, networking and dissemination of data. With the rapid increase in the capacity and size of data centers, there is a continuous increase in the demand for energy consumption. These data centers not on...

Network Function Virtualization (NFV) takes advantage of hardware virtualization to undertake software processing for various functions, and complements the drawbacks of traditional network technology. To speed up NFV related research, we need a user friendly and easy to use research tool, which could support data center simulation, scheduling algorithms implementation and extension, and provid...

With rapid rise of virtualization technology from diverse types of cloud computing service, security problems such as data safety and reliability are the issues at stake. Since damage in virtualization layer of cloud service can cause damage on all host (user) tasks, Hypervisor that provides an environment for multiple virtual operating systems can become a target of attack by hackers. This pap...

Server Virtualization continues to be one of the hottest topics of 2006. Join our quest for enlightenment as we explore the performance data of a large enterprise environment. We’ll travel through a major consolidation effort, review some of the basic methodology and difficulties of the migration, then look closely at data captured from VMware ESX, its virtual machines and Windows servers seeki...

This paper addresses media sharing via an approach that offers ‘fungible’ storage, where storage services implement virtual stores that are dynamically mapped to suitable ‘nearby’ or otherwise available physical devices. In particular, the novel VStore++ system provides seamless and flexible data storage, access, and sharing services, by exploiting virtualization technology to aggregate and mak...