The recent form of change in working on resources and platform introduced the term virtualization. Virtualization comes with its own merits and challenges. As it hides physical characteristics of the resources and the concept of encapsulation comes into picture. Hypervisor based architecture requires fewer hardware resources and can communicate more efficiently. All major players have introduce...

Virtualization became recently a hot topic once again, after being dormant for more than twenty years. In the meantime, it has been almost forgotten, that virtual machines are not so perfect isolating environments as it seems, when looking at the principles. These lessons were already learnt earlier when the first virtualized systems have been exposed to real life usage. Contemporary virtualiza...

Underutilization of hardware resources has always been a problem in single workload driven traditional OS environment. To improve resource utilization, virtualization of multiple VMs and workloads onto the same host with the aid of Hypervisor has been the recent trend. Its use cases such as server consolidation, live migration, performance isolation and on-demand server provisioning make it as ...

Hypervisors using virtualization technology enable multiple operating systems to run on one physical server. Cloud computing model is less expensive because it streamlines the delivery of services by providing a stage for optimizing complex IT resources in a scalable manner with the help of virtualization technology and hypervisors. Selecting a suitable hypervisor for their organization’s priva...

Virtualization is at the core of cloud computing. It lies on top of the cloud infrastructure, whereby virtual resources (e.g., virtual CPUs, memories, disks and networks) are constructed from the underlying physical resources and act as proxies to them. As is the case with the idea of cloud computing, which was first introduced in the 1960s [1], virtualization can be traced back to the 1970s [5...

Nowadays, virtualization solutions are gaining increasing importance. By enabling the sharing of physical resources, thus making resource usage more efficient, they promise energy and cost savings. Additionally, virtualization is the key enabling technology for Cloud Computing and server consolidation. However, the effects of sharing resources on system performance are not yet well-understood. ...

Virtualization is widely used for critical services like Cloud computing. It is desirable to formally verify virtualization systems. However, the complexity of the virtualization system makes the formal analysis a difficult task, e.g., sophisticated programs to manipulate low-level technologies, paged memory management, memory mapped I/O and trusted computing. In this paper, we propose a formal...

Virtualization is a technique that partitions a physical computer server into two or more virtual subsystems (or guests), each of which behaves as if it were a separate physical system. Through virtualization, more efficient usage of resources can often be achieved. However, virtualization comes with cost. In particular, the virtualization manager and the individual operating systems installed ...

Few issues in the IT arena are regarded with more interest and passion than virtualization. Virtualization refers to technologies designed to provide a layer of abstraction between computer hardware systems and the software running on them. Here, we are discussing the key concepts of virtualization if you want to implement the virtualization within your environment. Many different vendors have ...

Virtualization is an irreplaceable technique for efficient management of hardware resources in the field of information technology and computer science. With this phenomenal technology come challenges that hinder proper performance analysis of virtualized systems. This study focuses on virtualization implementations, various enterprise solutions, characterization of observations, concerns, pitf...