What are the supported image formats for live migration of KVM guests?

Solution Unverified - Updated -

Issue

  • We have a question about image formats available for live migration. We want to know whether live migration run with each of the following image formats is supported on RHEL
qcow2
raw (sparse)
raw (non-sparse)
  • Since there is no description about "unsupported" in Red Hat's documents, we think each is fully supported on RHEL. But now, we are not sure whether live migration with "qcow2" is supported because there is something negative on
    the upstream.

Environment

  • Red Hat Enterprise Linux 6.4GA
  • Architecture: x86_64
  • Package Version: qemu-kvm-0.12.1.2-2.355.el6.x86_64

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