From mboxrd@z Thu Jan 1 00:00:00 1970 From: anoneironaut84 Subject: Linear RAID failure. How to recreate? Date: Sun, 24 Jan 2010 19:25:23 -0800 (PST) Message-ID: <27301741.post@talk.nabble.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Hey all, I'm just wondering if there is any way to recreate a linear array. For example in a simple two disk linear RAID array if one disk fail if I replace the old drive with a working drive can I stop the linear RAID array, format the simple device nodes and recreate the array? I tried to do something like this but failed: bash# mdadm --manage /dev/md1 -f /dev/sda2 mdadm: set /dev/sda2 faulty in /dev/md1 bash# mdadm --manage /dev/md1 -f /dev/sdb2 mdadm: set /dev/sdb2 faulty in /dev/md1 bash# cat /proc/mdstat Personalities : [linear] [raid1] md1 : active linear sdb2[1] sda2[0] 957216768 blocks 64k rounding md0 : active raid1 sdb1[1] 9775424 blocks [2/1] [_U] unused devices: bash# mdadm --manage /dev/md1 -r /dev/sdb2 mdadm: hot remove failed for /dev/sdb2: Device or resource busy bash# mdadm --manage /dev/md1 -r /dev/sda2 mdadm: hot remove failed for /dev/sda2: Device or resource busy bash# mdadm --manage /dev/md1 -fr /dev/sda2 mdadm: hot remove failed for /dev/sda2: Device or resource busy bash# mdadm --manage --stop /dev/md1 mdadm: fail to stop array /dev/md1: Device or resource busy bash# fuser -m /dev/md1 bash# fuser -m /dev/sda2 bash# fuser -m /dev/sdb2 bash# mdadm --manage --stop /dev/md1 mdadm: fail to stop array /dev/md1: Device or resource busy bash-2.05b# lsof | grep md1 bash-2.05b# Would appreciate some input. Thanks! -JD PS My system is RHEL-4 running on the 2.6.22 kernel. -- View this message in context: http://old.nabble.com/Linear-RAID-failure.--How-to-recreate--tp27301741p27301741.html Sent from the linux-raid mailing list archive at Nabble.com.