From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763467AbZEATXv (ORCPT ); Fri, 1 May 2009 15:23:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756774AbZEATXn (ORCPT ); Fri, 1 May 2009 15:23:43 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:34257 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753039AbZEATXm (ORCPT ); Fri, 1 May 2009 15:23:42 -0400 Date: Fri, 1 May 2009 12:14:09 -0700 From: Andrew Morton To: Dave Jones Cc: lmb@suse.de, philipp.reisner@linbit.com, linux-kernel@vger.kernel.org, jens.axboe@oracle.com, gregkh@suse.de, neilb@suse.de, James.Bottomley@HansenPartnership.com, sam@ravnborg.org, knikanth@suse.de, nab@linux-iscsi.org, kyle@moffetthome.net, bart.vanassche@gmail.com, lars.ellenberg@linbit.com Subject: Re: [PATCH 00/16] DRBD: a block device for HA clusters Message-Id: <20090501121409.5efac25b.akpm@linux-foundation.org> In-Reply-To: <20090501131424.GA16852@redhat.com> References: <1241090812-13516-1-git-send-email-philipp.reisner@linbit.com> <20090501015902.ed8b56d3.akpm@linux-foundation.org> <20090501111554.GW12180@suse.de> <20090501131424.GA16852@redhat.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.20; i486-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 1 May 2009 09:14:25 -0400 Dave Jones wrote: > On Fri, May 01, 2009 at 01:15:54PM +0200, Lars Marowsky-Bree wrote: > > > > Is it being used anywhere for anything? If so, where and what? > > > > It is used by many customers (thousands world-wide, I'm sure) to > > replicate block device data locally (to replace more expensive SANs > > while achieving higher availablity) or async/remotely (for disaster > > recovery). > > > > The code is rather stable, the first drbd deployments date back many > > years - drbd0.7 for example has been shipping with SLES10/9, and 0.6 > > with SLES8 already. The new drbd8 code is shipping on SLE11 and used > > also in combination with OCFS2. > > > > So we very much welcome the renewed and persistent interest of merging > > the code in mainline (once all serious issues are addressed). > > > > Even if in the long-term a merge with other raid implementations is > > pursued (which I'd welcome even more), the existence of so many > > deployments means we'll need the code for awhile still. > > I've not looked through the patchset, and it's a bit outside my > domain of expertise, but I can attest we have had requests to > merge it in Fedora (which we've given the usual "get it upstream" response to). > The folks who run the Fedora infrastructure have been enthusiastic > about it for a while (which is why I ended up on the CC for this thread I guess). > I don't have details about their exact use-cases, but if desired, I can > find out more. > Oh. Thanks. Well we should all get cracking on it then.