From mboxrd@z Thu Jan 1 00:00:00 1970 From: EJ Vincent Subject: Re: Degraded Raid6 Date: Thu, 13 Dec 2012 14:17:15 -0500 Message-ID: <50CA29BB.5070407@ejane.org> References: <15214561.24.1355424666351.JavaMail.root@zimbra> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <15214561.24.1355424666351.JavaMail.root@zimbra> Sender: linux-raid-owner@vger.kernel.org Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 12/13/2012 1:51 PM, Roy Sigurd Karlsbakk wrote: >> I run an 8-disk raid 6 on which sporadically 2 drives dropped out, >> that I could just re-add when I zeroed the zuperblock beforehand. >> Recently, upon re-adding those 2 drives (after the zero-superblock) a >> third drive dropped out after 5-10 minutes of syncing. I then did a >> zero-superblock on the third drive and tried to re-add it - which >> failed. > ... >> 10 8 113 - spare /dev/sdh1 >> 11 8 1 - spare /dev/sda1 >> 12 8 65 - spare /dev/sde1 > If you had two drives failing, why didn't you let these spares take over the job? Roy, AFAIK, they were mistakenly labeled as spares, *after* the failure occurred. sdh, sda, and sde were original members of his array. -EJ