From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Gu7oh-0003Nn-2l for qemu-devel@nongnu.org; Tue, 12 Dec 2006 08:37:07 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Gu7of-0003ML-19 for qemu-devel@nongnu.org; Tue, 12 Dec 2006 08:37:06 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Gu7oe-0003MC-NW for qemu-devel@nongnu.org; Tue, 12 Dec 2006 08:37:04 -0500 Received: from [64.233.184.226] (helo=wr-out-0506.google.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1Gu7oe-00014L-FI for qemu-devel@nongnu.org; Tue, 12 Dec 2006 08:37:04 -0500 Received: by wr-out-0506.google.com with SMTP id 58so891951wri for ; Tue, 12 Dec 2006 05:37:03 -0800 (PST) Message-ID: <56d259a00612120537g5396ae0aif7bb3a84211f7975@mail.gmail.com> Date: Tue, 12 Dec 2006 13:37:03 +0000 From: "Martin Guy" Sender: martinwguy@gmail.com Subject: Re: [Qemu-devel] NBD server for QEMU images In-Reply-To: <20061212124803.47702.qmail@web52708.mail.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20061212124803.47702.qmail@web52708.mail.yahoo.com> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org > The patch available from http://qemu-forum.ipi.fi/viewtopic.php?t=2718 > adds a new utility, qemu-nbds, that implements a NBD server I have been using nbd volumes mounted from inside qemu for filestore and for swap, both read-write, served from files and from partitions, with the unmodified standard nbd-server (debian testing version) for intensive work and it has been faster and more reliable than NFS (not that that's saying much). The only thing that doesn't work is the -swap option, which just hangs, but that proves not to be necessary when swapping onto nbd host volume from qemu-land, even when stress-testing it. What problem is solved by a specially modified nbd server? M