Virtualization is a key technology for cloud computing as it allows several operating system instances to run on the same machine, enhances resource manageability and enables flexible definition of billing units. Virtualization works by adding a software layer, a hypervisor, on top of the hardware platform. Virtual Machines, VMs, are run on top of the hypervisor, which provisions hardwares reso...

Virtualization provides an efficient solution to the objectives of the cloud computing paradigm by facilitating creation of Virtual Machines (VMs) over the underlying physical servers, leading to improved resource utilization and intellection. Virtualization proposes to create a virtual version of a device or a resource likely to virtualize a server, a storage space, operating system or even ne...

The cloud computing is the architecture in which cloudlets are executed by the virtual machines. The most applicable virtual machines are selected on the basis of execution time and failure rate. Due to virtual machine overloading execution time and energy consumption is increased at steady rate. In this paper, Gravitational technique is applied in which weight of each virtual machine is calcul...

Despite significant advances in enabling live virtual machine (VM) migration within a virtualized—cloud— infrastructure, cross-cloud live migration remains an ad hoc, complex process. To create a network environment in which live migration can occur, clouds are beginning to expose virtual networks as a service. Connecting, managing and maintaining membership and routing information for—possibly...

The in compliance between user requests and the specification of physical server in cloud computing led to poor load balancing, poor performance and large power consumption etc. Concentrating at this problem, this paper presents an energy-aware resource scheduling strategy based on dynamic migration of virtual machines. The strategy integrates the virtualization characteristics of cloud computi...

It is significant to apply load balancing strategy to improve the performance and reliability of resource in Cloud data centers. In a dynamic changing traffic environment, workload of a Cloud data center has real-time and fixed process time characteristics. One of the challenging scheduling problems in Cloud data centers is to take the real-time allocation and migration of reconfigurable virtua...

In cloud computing, there are many strategies used for virtual machine (VM) placement. Objectives for VM placement are to reduce the number of physical machines required, VM allocation time and to reduce resource and power wastage. Various VM placement algorithms and the problems of existing techniques are analyzed and discussed here. The evaluation of those algorithms is given with the factors...

Past research in virtualisation technology has mainly focused on increasing isolation of co-resident virtual machines. At the same time network intensive applications, such as web services or database applications are being consolidated onto a single physical platform. The isolation properties of virtualisation, however, demand a strict separation of the shared resources. Co-resident virtual ma...

The fast growing demand for computational power utilized by modern applications with rapidly changing Cloud computing technology have directed to the foundation of large-scale virtualized data centers. Such data centers consume massive amounts of electrical energy resulting in high operating costs and carbon dioxide (CO2) emissions. Dynamic consolidation of virtual machines (VMs) using Dynamic ...