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Date: Mon, 12 Jan 2015 10:13:33 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] How to clone a running vm?
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To: Zhang Haoyu <zhanghy@sangfor.com.cn>, qemu-devel <qemu-devel@nongnu.org>
Cc: Fam Zheng <famz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>



On 12/01/2015 09:15, Zhang Haoyu wrote:
> > I want to clone a running vm without shutoff,
> > can below method work?
> > 1) create a snapshot for the vm
> > 2) create a new qcow2 image from the snapshot, but how?
> > 3) use the new qcow2 image as backing image to clone vms
>
> Can drive_mirror clone a running vm without guest service disruption?

Yes.

Paolo