On 02/06/2014 08:14 AM, Andrew Martin wrote: > Eric, > > For scripted live backups, which non-transient technique would you prefer: > 1. snapshot-create-as followed by blockpull, which results in the original > file being left as a standalone copy of the VM from that point in time; it > can then be copied off to a backup disk once blockpull completes Slower (because it pulls the entire contents of the original file into the new file), but likely to succeed. > 2. snapshot-create-as followed by copying the backing file (since it is now > read-only) and then using blockcommit to pull the interim changes back into > the original/backing file (and removing the snapshot file) Ideal, but not supported until (unreleased) qemu 2.0. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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