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Rollback is an effective technique to resume the system execution from a recorded intermediate state upon failures, without having to restart the entire system. However, in virtualized environments, rollback of a virtual machine cluster (VMC) produces high network traffic and long service disruption, particularly for a large cluster used for scientific computing, thereby imposing significant overhead...
Virtual machine introspection plays an important role in the area of security. Most virtual machine introspection mechanisms either poll the VM state actively or intercept the VM execution passively. Unfortunately, the active introspection approach cannot acquire information in real time, while the information acquired by passive method is fragmented and is hard to build complete semantic views of...
Virtual Machine Cluster (VMC) is now widely used to host network applications due to its well scalability and high availability compared to physical cluster. To provide fault tolerance, VMC snapshot is one well known technique, it saves the entire VMC state into stable storage and rollbacks the VM from the latest saved state upon failures. However, due to the large snapshot size as well as numerous...
With the prevalence of virtualization technology, virtual machine networks (VMN) have been widely used in host network applications. To provide fault tolerance and non-stop features to network applications and preserve the network consistency among virtual machines (VM), the distributed snapshot technique of virtual machine networks regains the attention of academia. While existing approaches still...
Virtualization is one of the main technologies currently used to deploy computing systems due to the high reliability and rapid crash recovery it offers in comparison to physical nodes. These features are mainly achieved by continuously producing snapshots of the status of running virtual machines. In earlier works, the snapshot of each individual VM is performed independently, ignoring the memory...
Cloud computing brings a loose-coupled resources integration paradigm with virtualized, elastic and cost-efficient resource management capabilities. Virtualization-based logging and replay technologies give users the ability to record the executions of the whole virtual machines and recover them at any time in a peer to peer mode, and it has become an important approach to analyze the system vul-nerability,...
Virtualisation is a prevalent technology in current computing. Virtualisation can reduce hardware costs by server consolidation, implement "green computing" by reducing power consumption and is an underpinning process for cloud computing enabling the creation of a range of virtual networks and virtual supercomputers. This paper presents performance measurements for a cloning system known...
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