Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751095AbWATR3e (ORCPT ); Fri, 20 Jan 2006 12:29:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751105AbWATR3d (ORCPT ); Fri, 20 Jan 2006 12:29:33 -0500 Received: from jose.lug.udel.edu ([128.175.60.112]:55245 "EHLO jose.lug.udel.edu") by vger.kernel.org with ESMTP id S1750993AbWATR3d (ORCPT ); Fri, 20 Jan 2006 12:29:33 -0500 Date: Fri, 20 Jan 2006 12:29:32 -0500 To: Neil Brown Cc: Phillip Susi , Jan Engelhardt , "Lincoln Dale (ltd)" , Michael Tokarev , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org, "Steinar H. Gunderson" Subject: Re: [PATCH 000 of 5] md: Introduction Message-ID: <20060120172932.GC27141@lug.udel.edu> References: <26A66BC731DAB741837AF6B2E29C1017D47EA0@xmb-hkg-413.apac.cisco.com> <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> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <17360.9233.215291.380922@cse.unsw.edu.au> User-Agent: Mutt/1.5.11 From: ross@jose.lug.udel.edu (Ross Vandegrift) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1367 Lines: 31 On Fri, Jan 20, 2006 at 10:43:13AM +1100, Neil Brown wrote: > dm and md are just two different interface styles to various bits of > this. Neither is clearly better than the other, partly because > different people have different tastes. Here's why it's great to have both: they have different toolkits. I'm really familiar with md's toolkit. I can do most anything I need. But I'll bet that I've never gotten a pvmove to finish sucessfully because I am doing something wrong and I don't know it. Becuase we're talking about data integrity, the toolkit issue alone makes it worth keeping both code paths. md does 90% of what I need, so why should I spend the time to learn a new system that doesn't offer any advantages? [1] I'm intentionally neglecting the 4k stack issue -- Ross Vandegrift ross@lug.udel.edu "The good Christian should beware of mathematicians, and all those who make empty prophecies. The danger already exists that the mathematicians have made a covenant with the devil to darken the spirit and to confine man in the bonds of Hell." --St. Augustine, De Genesi ad Litteram, Book II, xviii, 37 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/