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QEMU-KVM Now Supports Block Migration

Virtualization

Published on 22 January 2010 05:48 AM EST
Written by Michael Larabel in Virtualization
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Version 0.12.2 of qemu-kvm was released earlier this week. This version continues to be derived from the upstream QEMU code-base with various KVM enhancements. For the most part it's various fixes making up the qemu-kvm 0.12.2 release, but there is a new feature and that is block migration.

The block migration support in qemu-kvm 0.12.2 makes it possible to do block migration of a virtual disk during the live migration process. Using this feature during a live QEMU migration will copy the entire virtual disk image asynchronously and then go back and copy the dirty blocks that were modified since the initial copy. This feature supports both live migration with complete storage copy and live migration with incremental storage copy.

Details concerning the block migration feature for qemu-kvm 0.12.2 can be found at Linux-KVM.com along with the migration instructions.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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