From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David C. Rankin" Subject: Re: Help with degraded array Date: Sat, 14 Dec 2013 04:38:22 -0600 Message-ID: <52AC351E.5050709@suddenlinkmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: mdraid List-Id: linux-raid.ids On 12/13/2013 04:11 PM, Alex wrote: > I'd really appreciate any guidance you could provide. > > Thanks, > Alex It simply looks like the drive designation changed /dev/sda -> /dev/sdc and mdadm kicked sda out of the array because it wasn't there. Are you not using UUID designation to assemble the arrays? What does your /etc/mdadm.conf look like? It looks like you could add /dev/sdc3 back into the array, let it rebuild if necessary, then use: mdadm --detail --scan >> /etc/mdadm.conf To create a new UUID based mdadm.conf that would prevent this from happening again. -- David C. Rankin, J.D.,P.E.