From mboxrd@z Thu Jan 1 00:00:00 1970 From: MORITA Kazutaka Subject: Re: [ANNOUNCE] Sheepdog: Distributed Storage System for KVM Date: Fri, 23 Oct 2009 19:06:18 +0900 Message-ID: <8fd1d76d0910230306v442d485cl939418543f846af6@mail.gmail.com> References: <4ADE988B.2070303@lab.ntt.co.jp> <90D306BE6EBC8D428A824FBBA7A3113D0127975B04@ronja.maurer-it.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "kvm@vger.kernel.org" , "qemu-devel@nongnu.org" , "linux-fsdevel@vger.kernel.org" To: Dietmar Maurer Return-path: Received: from mail-gx0-f216.google.com ([209.85.217.216]:50145 "EHLO mail-gx0-f216.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751083AbZJWKGS convert rfc822-to-8bit (ORCPT ); Fri, 23 Oct 2009 06:06:18 -0400 In-Reply-To: <90D306BE6EBC8D428A824FBBA7A3113D0127975B04@ronja.maurer-it.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: We use JGroups (Java library) for reliable multicast communication in our cluster manager daemon. We don't worry about the performance much since the cluster manager daemon is not involved in the I/O path. We might think about moving to corosync if it is more stable than JGroups. On Wed, Oct 21, 2009 at 6:08 PM, Dietmar Maurer w= rote: > Quite interesting. But would it be possible to use corosync for the c= luster communication? The point is that we need corosync anyways for pa= cemaker, it is written in C (high performance) and seem to implement th= e feature you need? > >> -----Original Message----- >> From: kvm-owner@vger.kernel.org [mailto:kvm-owner@vger.kernel.org] O= n >> Behalf Of MORITA Kazutaka >> Sent: Mittwoch, 21. Oktober 2009 07:14 >> To: kvm@vger.kernel.org; qemu-devel@nongnu.org; linux- >> fsdevel@vger.kernel.org >> Subject: [ANNOUNCE] Sheepdog: Distributed Storage System for KVM >> >> Hi everyone, >> >> Sheepdog is a distributed storage system for KVM/QEMU. It provides >> highly available block level storage volumes to VMs like Amazon EBS. >> Sheepdog supports advanced volume management features such as snapsh= ot, >> cloning, and thin provisioning. Sheepdog runs on several tens or >> hundreds >> of nodes, and the architecture is fully symmetric; there is no centr= al >> node such as a meta-data server. > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at =A0http://vger.kernel.org/majordomo-info.html > --=20 MORITA, Kazutaka NTT Cyber Space Labs OSS Computing Project Kernel Group E-mail: morita.kazutaka@lab.ntt.co.jp -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html