From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Wuertele Subject: Repost --- please help, did "mdadm --create" make my data unrecoverable? Date: 27 Jun 2005 11:13:19 -0700 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I recently had a raid server hang, and after a reset the 1.5TB raid 5 array no longer mounted. Being hasty, I messed around with mdadm commands trying to find out what was going wrong, and in the process I ran "mdadm -C" thinking that it was one of the steps for mounting an existing array. I suspect that this was a fatal error, because now fsck.reiserfs can't find the superblock on the array! I know how to create a new superblock for reiserfs, and rebuild the tree, but that will only work if the data is still readable. Should I go ahead and try this, or should I first try to reassemble my raid to find the correct configuration? I had an /etc/mdadm.conf file lying around, and I happened to compare the uuid in the /etc/mdadm.conf file and on one of the partitions. They did not match!!! Did I forever ruin my raid array? Is there a way to recover my reiserfs superblock and the original array data? Thanks, Dave