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Published in:
2013 | OriginalPaper | Chapter
Priority-Based Live Migration of Virtual Machine
Authors : Bangjie Jiang, Junmin Wu, Xiaodong Zhu, Die Hu
Published in: Grid and Pervasive Computing
Publisher: Springer Berlin Heidelberg
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Live migration of Virtual Machines (VMs) has been a powerful tool to facilitate system maintenance, load balancing, fault tolerance, and power saving. In this paper, we describe the design and implementation of a novel, priority-based approach for the live migration of VM that can greatly reduce VM service downtime. Our approach is mainly used in the desktop virtual environment where there are more than one application running in the VM. Our scheme offers applications that demand short service downtime the high migration priority while applications that can tolerate long VM service downtime are assigned with the low migration priority. During the iterative copy and the stop-and-copy phases, our scheme only transfers all dirty pages that belong to the high priority applications, so the service downtime will be less than that of pre-copy. Compared with pre-copy based live migration, the proposed approach can significantly reduce 57% of the service downtime of high priority applications.