From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jeffrey B. Layton" Subject: How to determine drive order in RAID-1 Date: Mon, 15 Oct 2007 19:44:07 -0400 Message-ID: <4713FB47.1010507@charter.net> Reply-To: laytonjb@charter.net Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Good evening, I hate to be a noob, but my system is dying (I think it's a bad motherboard) so I wanted to get this email out before the system died again. I've got 2 different RAID-1 devices (md0 and md1). md0 uses the on-board IDE controller and md1 has two SATA drives each is attached to a Promise SATA300 TX2 controller (one drive to one controller). Is there anyway to determine which drive is the first drive in the md device and which is the second. The reason I want to determine this is that I will be moving the drives to a new system. Or does it matter in which order they are moved? (the OS drive is moving over as well). Thanks! Jeff