QEMU-KVM Now Supports Block Migration
Written by Michael Larabel in Virtualization on 22 January 2010 at 05:48 AM EST. Add A Comment
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.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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