From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dexter Filmore Subject: Re: softraid and multiple distros Date: Tue, 16 May 2006 14:24:48 +0200 Message-ID: <200605161424.49057.Dexter.Filmore@gmx.de> References: <200605161216.00477.Dexter.Filmore@gmx.de> <17513.47199.99460.746601@cse.unsw.edu.au> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <17513.47199.99460.746601@cse.unsw.edu.au> Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: Neil Brown Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids > So in the very simple one-array situation, this is probably safe. > But it doesn't generalise. If you have two array of distinct devices, > then something like > > ARRAY /dev/md0 devices=/dev/sda1,/dev/sdb1,/dev/sdc1,/dev/sdd1 > ARRAY /dev/md1 devices=/dev/sde1,/dev/sdf1,/dev/sdg1,/dev/sdh1 > > is not safe. If /dev/sda1 fails, you pull it out and reboot, then md1 > won't be assembled properly as everything will get renamed. > In general it is safer to use UUIDs > > DEVICE /dev/sd[a-z][0-9] > ARRAY /dev/md0 uuid=whatever > ARRAY /dev/md1 uuid=whatever:else > > Hope that makes it reasonably clear. Absolutely, thanks. -- -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d--(+)@ s-:+ a- C+++(++++) UL+>++++ P+>++ L+++>++++ E-- W++ N o? K- w--(---) !O M+ V- PS++(+) PE(-) Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@ b++(+++) DI+++ D G++ e* h>++ r%>* y? ------END GEEK CODE BLOCK------ http://www.stop1984.com http://www.againsttcpa.com