From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dan Williams <djbw@fb.com>
Subject: Re: Recovery/Access of imsm raid via mdadm?
Date: Wed, 16 Jan 2013 14:47:49 -0800
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To: chris <tknchris@gmail.com>
Cc: "Dorau, Lukasz" <lukasz.dorau@intel.com>, Neil Brown <neilb@suse.de>, "Jiang, Dave" <dave.jiang@intel.com>, Linux-RAID <linux-raid@vger.kernel.org>
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On Wed, Jan 16, 2013 at 8:49 AM, chris <tknchris@gmail.com> wrote:
> any idea why it wont assemble? I thought even if data was corrupt I
> should be able to force it to assemble and look at it to determine if
> it is corrupt or in tact

A bug in mdadm was introduced shortly after the "missing" support was
added.  Looks like you need 3.2.6.

--
Dan