Public bug reported:
running live migration with --block-migrate fails if the disk was
resized before (aka detached from the cow image). This is because
nova.virt.libvirt.driver.py uses disk_size, not virt_disk_size for re-
creating the qcow2 file on the destination host. in the case of qcow2
files, qemu-img however needs to get the virt_disk size passed down,
otherwise the block migration step will not be able to convert all
blocks.
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1257355
Title:
live migration fails when using non-image backed disk
Status in OpenStack Compute (Nova):
New
Bug description:
running live migration with --block-migrate fails if the disk was
resized before (aka detached from the cow image). This is because
nova.virt.libvirt.driver.py uses disk_size, not virt_disk_size for re-
creating the qcow2 file on the destination host. in the case of qcow2
files, qemu-img however needs to get the virt_disk size passed down,
otherwise the block migration step will not be able to convert all
blocks.
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