Nowadays service oriented computing requires enlarging the virtualized datacenters. Quality of service has been the sole concern in cloud datacenter deployment. This demand will increase the operational cost and carbon dioxide emissions. Virtualization technology support Virtual Machine consolidation and migration. This will improve the server utilization, availability, fault tolerance and ener...

(ABSTRACT) High availability is a critical feature of data centers, cloud, and cluster computing environments. Replication is a classical approach to increase service availability by providing redundancy. However , traditional replication methods are increasingly unattractive for deployment due to several limitations such as application-level non-transparency, non-isolation of applications (cau...

With the energy and power costs increasing alongside the growth of the IT infrastructures, achieving workload concentration and high availability in cloud computing environments is becoming more and more complex. Virtual machine (VM) migration has become an important approach to address this issue, particularly; live migration of the VMs across the physical servers facilitates dynamic workload ...

Vertical elasticity, or scale-up of individual virtual machines is hard to perform in today’s cloud environments due to limitations in the amount of hardware resources available in single servers. We propose a novel approach that allows aggregation of memory, compute and I/O resources from multiple physical machines in resource pools which in turn are used to seamlessly provision virtual machin...

In Vehicular Cloud (VC), Storage as Service (STaaS) is different from other services in vehicle cloud environment for the fact that it involves the migration of virtual OBU to be used by a data center, thus requiring more security issues to be addressed. In this paper, we propose a Secure Virtual Machine Migration Protocol Steps which can achieve secure handling in vehicular environment. Based ...