On 01/06/2016 09:20 AM, Max Reitz wrote: >> If I take a snapshot while the guest sees a 1G disk, then resize the >> disk to 2G, then roll back to the point in time of the snapshot, I'd >> expect the disk to roll back to 1G in size. Anything else is likely to >> confuse the guest. And that's what current resize support already does >> (it only resizes the active image, not the snapshots). > > No, the current resize operation just refuses to resize the image if it > has any snapshots. Snapshots currently do not store the size of the > image when they were created.
Huh? I thought that we specifically added bytes 48-55 per snapshot entry in the qcow2v3 description specifically so that internal snapshots DO record the size of the image when the snapshot was created. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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