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From: kustep <kustep@web.de>
To: linux-raid <linux-raid@vger.kernel.org>
Subject: unused space before data offset mismatch
Date: Wed, 20 Nov 2013 20:46:21 +0100	[thread overview]
Message-ID: <528D118D.7090800@web.de> (raw)

Hello Everyone,

is there an option to specifiy the "Unused Space : before=...."
Superblock information in mdadm -C ....?

My Raid crashed due to a controller error, but I was able to make the
new superblock almost identical to the old one (using mdadm -C
--assume-clean --level=6 --raid-devices=11 --chunk=256K --metadata=1.2
--bitmap=None --size=195328588 --data-offset=128768 /dev/md0
/dev/mapper/disk[cdefmbjkh] missing). Looking at mdadm --examine the
only difference left is:
old layout: Unused Space : before=257456 sectors, after=197632 sectors
new layout: Unused Space : before=257448 sectors, after=197632 sectors

Is there an option to change that or anything else I can do to make the
layouts identical? The assembled raid refuses to mount, and I suspect
this difference to be the reason.

Thanks in advance
Stephan

             reply	other threads:[~2013-11-20 19:46 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-20 19:46 kustep [this message]
2013-11-21  3:25 ` unused space before data offset mismatch Phil Turmel
2013-11-21  3:33 ` NeilBrown

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