Re: [libvirt-users] Questions and a blockpull issue

On 10/22/2012 01:18 PM, Abbas wrote: Good to hear. Remember, with blockpull, --base is the point in the chain that becomes the new backing image of the active layer, omitting --base says no backing image at all. The qemu side is in qemu.git, and will be released in December as part of qemu 1.3. The libvirt side is in libvirt.git, and will be released in November as part of libvirt 1.0.0. But you are correct that there are no released versions that support blockcommit yet. For snapshots, that all depends on what you want to do with the snapshot - if you want to ever revert to the snapshot (and boot from that state), then quiescing makes sense; but if snapshots is only an intermediate step as part of a larger sequence of operations and you will then remove the intermediate files via blockpull and/or blockcommit, then quiescing is not necessary. Thankfully, live snapshot, live block pull, and live block commit have all been designed to avoid image corruption while qemu continues to run. Thanks for the pointer; I'm updating that page now. -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org