From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luca Berra Subject: Re: Time to deprecate old RAID formats? Date: Sun, 28 Oct 2007 14:46:40 +0100 Message-ID: <20071028134636.GB22861@percy.comedia.it> References: <1192813877.1666.79.camel@firewall.xsintricity.com> <18200.63987.514073.184865@stoffel.org> <20071019212303.GB2013@teal.hq.k1024.org> <1192830129.1666.103.camel@firewall.xsintricity.com> <20071020075349.GA17431@teal.hq.k1024.org> <1192885917.1666.112.camel@firewall.xsintricity.com> <20071026095417.GC32550@percy.comedia.it> <1193424779.10336.287.camel@firewall.xsintricity.com> <20071027080035.GC12053@percy.comedia.it> <1193515743.10336.324.camel@firewall.xsintricity.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Return-path: Content-Disposition: inline In-Reply-To: <1193515743.10336.324.camel@firewall.xsintricity.com> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Sat, Oct 27, 2007 at 04:09:03PM -0400, Doug Ledford wrote: >On Sat, 2007-10-27 at 10:00 +0200, Luca Berra wrote: >> On Fri, Oct 26, 2007 at 02:52:59PM -0400, Doug Ledford wrote: >> >On Fri, 2007-10-26 at 11:54 +0200, Luca Berra wrote: >> >> On Sat, Oct 20, 2007 at 09:11:57AM -0400, Doug Ledford wrote: >> >> just apply some rules, so if you find a partition table _AND_ an md >> >> superblock at the end, read both and you can tell if it is an md on a >> >> partition or a partitioned md raid1 device. >> > >> >In fact, no you can't. I know, because I've created a device that had >> >both but wasn't a raid device. And it's matching partner still existed >> >too. What you are talking about would have misrecognized this >> >situation, guaranteed. >> then just ignore the device and log a warning, instead of doing a random >> choice. >> L. > >It also happened to be my OS drive pair. Ignoring it would have >rendered the machine unusable. I wonder what would have happened if it got it wrong -- Luca Berra -- bluca@comedia.it Communication Media & Services S.r.l. /"\ \ / ASCII RIBBON CAMPAIGN X AGAINST HTML MAIL / \