From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Greaves Subject: Re: RAID5 not being reassembled correctly after device swap Date: Tue, 03 Jul 2007 19:43:33 +0100 Message-ID: <468A98D5.9090206@dgreaves.com> References: <200707012321.48346.infomails@tronserver.dyndns.org> <200707031916.50502.infomails@tronserver.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200707031916.50502.infomails@tronserver.dyndns.org> Sender: linux-raid-owner@vger.kernel.org To: Michael Frotscher Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Michael Frotscher wrote: > Hello all, > > I guess you can say that I'm at my wit's end. I really don't get it. An RAID > array is suppose to recognize its members purely by its uuid, isn't it? So > technically, I can remove a drive from one bus, reconnect it to another > giving it a new device name and the array should not even need to sync. > > Somehow it doesn't. Somehow the array remembers of which devices it's supposed > to be assembled and boots in degraded mode, funnily not always missing the > swapped drive. > > Suppose I lose a whole ide-controller and want to restart the box with a > seconday controller? That one would surely not have the devices hda through > hdd and my array would refuse to start. > > Does anyone have a suggestion of what I can try? Ok, the array runs fine as > long as it is connected to its original bus, but I really don't want to take > chances here. Do you have a mdman.conf file that specifies/limits partitions to search? David