From mboxrd@z Thu Jan 1 00:00:00 1970 From: estr4ng3d Subject: RAID5 volumes suddenly lost superblock and show weird hexdump patterns Date: Thu, 2 Apr 2009 07:25:57 -0700 (PDT) Message-ID: <22849175.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 I got some of my RAID5 array volumes damaged. I have no idea what happened, I was simply trying to manually assemble them after a reboot, only to discover they are no longer recognized by mdadm as containing a superblock. What's interesting and really weird (to my humble knowledge at least) is that hexdumps show interesting patterns. http://pastebin.com/m494e69c0 Obviously far from being random garbage (hence I'm ruling out media damage). Does RAID create this sort of data sequences as part of its operation? Could this have been deliberate overwriting of my volumes? I'm desperately trying to recover data on this array. Any help/pointers appreciated! Thanks -- View this message in context: http://www.nabble.com/RAID5-volumes-suddenly-lost-superblock-and-show-weird-hexdump-patterns-tp22849175p22849175.html Sent from the linux-raid mailing list archive at Nabble.com.