On Wed, Mar 14, 2018 at 09:36:52AM +0100, Gionatan Danti wrote:
Hi all, I have a question about internal qcow2 snapshots of a live/running virtual machine taken via "qemu-img snapshot command". My question is: is it safe to execute the command above against a running machine? Or it will cause corruption? Naively I think it should *not* be safe, however, I would like a direct confirmation.
It is not safe. For a running domain, you need to go through libvirt and also save the memory of the VM - doing just the disk snapshot for a running machine would be an equivalent of copying a physical hard drive after pulling out the power cord. Jan
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