From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukas Laukamp Subject: [User Question] How to create a backup of an LVM based maschine without wasting space Date: Fri, 12 Oct 2012 08:52:32 +0200 Message-ID: <5077BE30.5010209@laukamp.me> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from mailer0.lippux.de ([5.9.218.245]:46791 "EHLO mailer0.lippux.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756061Ab2JLHB5 (ORCPT ); Fri, 12 Oct 2012 03:01:57 -0400 Received: from localhost (localhost [127.0.0.1]) by mailer0.lippux.de (Postfix) with ESMTP id 80BA5424FA2 for ; Fri, 12 Oct 2012 08:52:38 +0200 (CEST) Received: from mailer0.lippux.de ([127.0.0.1]) by localhost (mailer0.lippux.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VGUL2NUB6tno for ; Fri, 12 Oct 2012 08:52:38 +0200 (CEST) Received: from ashlynn.lippux.de (unknown [5.9.218.242]) (Authenticated sender: lukas@laukamp.me) by mailer0.lippux.de (Postfix) with ESMTPSA id 3C4C04235CB for ; Fri, 12 Oct 2012 08:52:38 +0200 (CEST) Sender: kvm-owner@vger.kernel.org List-ID: Hey all, I have a simple user question. I have a few LVM based KVM guests and wan't to backup them to files. The simple and nasty way would be to create a complete output file with dd, which wastes very much space. So I would like to create a backup of the LVM to a file which only locates the space which is used on the LVM. Would be create when the output file would be something like a qcow2 file which could be also simply startet with KVM. Is this supported by qemu_backup or what would be the best way to do this? PS: Sorry for my bed english Best Regards