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    Using VM replication to build a consistent, fast HA system

    He, Muyang

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    Date
    2016
    Citation:
    He, M. (2016). Using VM replication to build a consistent, fast HA system (Unpublished document submitted in partial fulfilment of the requirements for the degree of Master of Computing). Unitec Institute of Technology, Auckland, New Zealand. Retrieved from https://hdl.handle.net/10652/4677
    Permanent link to Research Bank record:
    https://hdl.handle.net/10652/4677
    Abstract
    Virtualization supplies a straightforward approach to high availability through iterative replications of virtual machine (VM) checkpoints that encapsulate the protected services. Unfortunately, traditional VM replication solutions suffer from deficiencies in either response latency or state recovery consistency, which constrains the adoption of VM replication in production. In this work, we redesign the typical consistency model and network architecture for virtual machine replication. In doing this, we extend the functionality of the secondary host to be the primary recipient of network requests so that the state of the primary VM (PVM) is retained by the secondary host in the form of network packets. Specifically, the secondary host is set for network redirection and packets recording. Should the primary host fail, the recorded packets are used to recreate the state on the secondary host. We name the system reverse replication of virtual machines (rRVM). Experiments demonstrate the simultaneous strong recovery consistency and low response latency of our real-time disaster recovery system. To be specific, we achieved 100% consistency without additional latency imposed.
    Keywords:
    replication virtual machines (rRVM), virtual machines (Computing), high-availability storage (HA storage), HA system, network architecture
    ANZSRC Field of Research:
    0805 Distributed Computing
    Degree:
    Master of Computing
    Supervisors:
    Pang, Shaoning
    Rights:
    This digital work is protected by copyright. It may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: Any use you make of these documents or images must be for research or private study purposes only, and you may not make them available to any other person. You will recognise the author's and publishers rights and give due acknowledgement where appropriate.
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    © Unitec Institute of Technology, Private Bag 92025, Victoria Street West, Auckland 1142