From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rick Bragg Subject: raid10 How do I tell what side of the mirror a disk is on? Date: Fri, 29 Jan 2010 10:00:47 -0500 Message-ID: <1264777247.29409.64.camel@thor> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hi, I recently posted a question to find out how to tell what is sda, b, c, etc... and I am now using smartctl to get the serial numbers and all is really great. Thanks everyone for that info! Another puzzle is with raid10, there are 2 used in a stripe, then that stripe is mirrored with the other 2. My question is how can I tell "what 2 disks can fail?" In other words, how can I tell for example if sda and b are stiped? and that c and d are a mirror of a and b? How can I see what is happening with that? Is there a way to tell? Thanks Rick