From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37970) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2Mbk-0003SY-V4 for qemu-devel@nongnu.org; Wed, 02 Jul 2014 11:38:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X2Mbb-0006Yy-Bo for qemu-devel@nongnu.org; Wed, 02 Jul 2014 11:38:04 -0400 Received: from theiggy.com ([66.220.1.110]:53107 helo=mail.theiggy.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X2Mbb-0006Vp-5V for qemu-devel@nongnu.org; Wed, 02 Jul 2014 11:37:55 -0400 Message-ID: <53B426EC.6000000@theiggy.com> Date: Wed, 02 Jul 2014 10:36:12 -0500 From: Brian Jackson MIME-Version: 1.0 References: <55f3a6d8.2be20.146f7a712b8.Coremail.kvmluck@163.com> In-Reply-To: <55f3a6d8.2be20.146f7a712b8.Coremail.kvmluck@163.com> Content-Type: text/plain; charset=gbk; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] from which version qemu support clone on rbd List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: yue , qemu-devel Qemu doesn't handle that level of abstraction. The closest approximation you could probably come up with is qemu-img's backing file support for qcow2 images. You should stick to using the rbd tool to create clones of rbd devices. Alternatively, use a higher level tool (like openstack, etc) that supports this. --Iggy On 7/2/2014 10:17 AM, yue wrote: > hi,all > i now look at qemu 2.0, i do not find rbd-api related to clone. > if qemu support this function? and from which version? > clone api of rbd is very simple(one api), why qemu does not > implement?what is the reason? > thanks. > >