From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Philipp Reisner To: drbd-dev@lists.linbit.com Subject: Re: [Drbd-dev] [PATCH] dynamic creation/removal more then 256 drbd devices Date: Fri, 4 May 2007 14:44:34 +0200 References: <200704271121.44336.stf_xl@wp.pl> <200705041106.40989.philipp.reisner@linbit.com> <200705041336.33032.stf_xl@wp.pl> In-Reply-To: <200705041336.33032.stf_xl@wp.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705041444.35189.philipp.reisner@linbit.com> List-Id: Coordination of development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Am Freitag, 4. Mai 2007 13:36 schrieb Stanislaw Gruszka: > On Friday 04 May 2007 11:06, Philipp Reisner wrote: > > We are just looking at the patch and are wondering why one > > would like to have more than 256 devices ? > > Philipp, > > With LVM it is possible to create many logical volumes. > One may want to create a lot of (small) logical volumes and > use them as backing devices for drbd for replication > to some hosts with also a lot of logical volumes. > Now drbd have flexible meta data so replication of > small size block devices have sense. Someone may want to > make replication on many small devices. Yes of course. But in case I had an application that is in the need for many block devices (e.g. a farm of kvm or xen instances...) I would put a LVM VG on top of a singe DRBD device. My question is more like: What was your motivation for doing this patch ? -Phil -- : Dipl-Ing Philipp Reisner Tel +43-1-8178292-50 : : LINBIT Information Technologies GmbH Fax +43-1-8178292-82 : : Vivenotgasse 48, 1120 Vienna, Austria http://www.linbit.com :