云基础设施热迁移的高效存储同步

2011 19th International Euromicro Conference on Parallel, Distributed and Network-Based Processing Pub Date : 2011-02-09 DOI:10.1109/PDP.2011.43

Katharina Haselhorst, Matthias Schmidt, Roland Schwarzkopf, N. Fallenbeck, Bernd Freisleben

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引用次数: 23

摘要

虚拟机的实时迁移是云计算环境中的一个重要问题:当物理主机过载时，可以将部分或全部虚拟机移动到负载较少的主机上。当虚拟机使用本地持久存储时，实时迁移会带来额外的挑战，因为在虚拟机运行时，需要将完整的磁盘状态传输到目标主机，从而改变磁盘状态。本文介绍了在云基础设施中虚拟机实时迁移过程中实现和同步持久存储的几种方法。此外，这些方法还使用户能够迁移交换空间，这在大多数虚拟机超级管理程序上目前是不可能的。最后，给出了有关磁盘同步、迁移时间和可能开销的度量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Efficient Storage Synchronization for Live Migration in Cloud Infrastructures

Live migration of virtual machines is an important issue in Cloud computing environments: when physical hosts are overloaded, some or all virtual machines can be moved to a less loaded host. Live migration poses additional challenges when virtual machines use local persistent storage, since the complete disk state needs to be transferred to the destination host while the virtual machines are running and hence are altering the disk state. In this paper, several approaches for implementing and synchronizing persistent storage during live migration of virtual machines in Cloud infrastructures are presented. Furthermore, the approaches also enable users to migrate swap space, which is currently not possible on most virtual machine hyper visors. Finally, measurements regarding disk synchronization, migration time and possible overheads are presented.

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2011 19th International Euromicro Conference on Parallel, Distributed and Network-Based Processing

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