2005 LiveMigrationofVirtualMachines

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Subject Headings: Cloud Computing, Virtual Machine.

= Notes

Cited By

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Abstract

Migrating operating system instances across distinct physical hosts is a useful tool for administrators of data centers and clusters: It allows a clean separation between hardware and software, and facilitates fault management, load balancing, and low-level system maintenance.

By carrying out the majority of migration while OSes continue to run, we achieve impressive performance with minimal service downtimes; we demonstrate the migration of entire OS instances on a commodity cluster, recording service downtimes as low as 60ms. We show that our performance is sufficient to make live migration a practical tool even for servers running interactive loads.

In this paper we consider the design options for migrating OSes running services with liveness constraints, focusing on data center and cluster environments. We introduce and analyze the concept of writable working set, and present the design, implementation and evaluation of high-performance OS migration built on top of the Xen VMM.

References

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 AuthorvolumeDate ValuetitletypejournaltitleUrldoinoteyear
2005 LiveMigrationofVirtualMachinesChristopher Clark
Keir Fraser
Steven Hand
Jacob Gorm Hansen
Eric Jul
Christian Limpach
Ian Pratt
Andrew Warfield
Live Migration of Virtual Machines2005