From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heinz Mauelshagen Subject: Re: [PATCH 000 of 5] md: Introduction Date: Sat, 21 Jan 2006 01:08:06 +0100 Message-ID: <20060121000806.GT2801@redhat.com> References: <17358.52476.290687.858954@cse.unsw.edu.au> <43D00FFA.1040401@cfl.rr.com> <17360.5011.975665.371008@cse.unsw.edu.au> <43D02033.4070008@cfl.rr.com> <17360.9233.215291.380922@cse.unsw.edu.au> <20060120183621.GA2799@redhat.com> <20060120225724.GW22163@marowsky-bree.de> <20060121000142.GR2801@redhat.com> <20060121000344.GY22163@marowsky-bree.de> Reply-To: mauelshagen@redhat.com Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <20060121000344.GY22163@marowsky-bree.de> Sender: linux-raid-owner@vger.kernel.org To: Lars Marowsky-Bree Cc: Heinz Mauelshagen , Neil Brown , Phillip Susi , Jan Engelhardt , "Lincoln Dale (ltd)" , Michael Tokarev , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, "Steinar H. Gunderson" List-Id: linux-raid.ids On Sat, Jan 21, 2006 at 01:03:44AM +0100, Lars Marowsky-Bree wrote: > On 2006-01-21T01:01:42, Heinz Mauelshagen wr= ote: >=20 > > > Why not provide a dm-md wrapper which could then > > > load/interface to all md personalities? > > As we want to enrich the mapping flexibility (ie, multi-segment fin= e grained > > mappings) of dm by adding targets as we go, a certain degree and tr= ansitional > > existence of duplicate code is the price to gain that flexibility. >=20 > A dm-md wrapper would give you the same? No, we'ld need to stack more complex to achieve mappings. Think lvm2 and logical volume level raid5. >=20 >=20 > Sincerely, > Lars Marowsky-Br=E9e >=20 > --=20 > High Availability & Clustering > SUSE Labs, Research and Development > SUSE LINUX Products GmbH - A Novell Business -- Charles Darwin > "Ignorance more frequently begets confidence than does knowledge" --=20 Regards, Heinz -- The LVM Guy -- =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D- Heinz Mauelshagen Red Hat GmbH Consulting Development Engineer Am Sonnenhang 11 Cluster and Storage Development 56242 Marienrachdorf Germany Mauelshagen@RedHat.com +49 2626 141200 FAX 924446 =3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D= -=3D-=3D-=3D- - To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html