From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: second controller: what will my discs be called, and does it matter? Date: Mon, 17 Jul 2006 14:28:06 -0400 Message-ID: <44BBD6B6.6080602@tmr.com> References: <200607062012.14684.Dexter.Filmore@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <200607062012.14684.Dexter.Filmore@gmx.de> Sender: linux-raid-owner@vger.kernel.org To: Dexter Filmore Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids Dexter Filmore wrote: >Currently I have 4 discs on a 4 channel sata controller which does its job >quite well for 20 bucks. >Now, if I wanted to grow the array I'd probably go for another one of these. > >How can I tell if the discs on the new controller will become sd[e-h] or if >they'll be the new a-d and push the existing ones back? > > For software RAID you shouldn't care, for other things you might. >Next question: assembling by UUID, does that matter at all? > > No. There's the beauty of it. >(And while talking UUID - can I safely migrate to a udev-kernel? Someone on >this list recently ran into trouble because of such an issue.) > You shouldn't lose data unless you panic at the first learning experience and do something without thinking of the results. I would convert to UUID first, obviously. -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979