From: Phil Turmel <philip@turmel.org>
To: kustep <kustep@web.de>, linux-raid <linux-raid@vger.kernel.org>
Subject: Re: unused space before data offset mismatch
Date: Wed, 20 Nov 2013 22:25:55 -0500 [thread overview]
Message-ID: <528D7D43.3070708@turmel.org> (raw)
In-Reply-To: <528D118D.7090800@web.de>
On 11/20/2013 02:46 PM, kustep wrote:
> Hello Everyone,
>
> is there an option to specifiy the "Unused Space : before=...."
> Superblock information in mdadm -C ....?
I don't know about this, but ...
> 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
This almost certainly didn't do what you think--square brackets in the
shell don't maintain the order of the letters given. The device order
actually given to mdadm would have been [bcdefhjkm]. The bracket
notation will also leave out devices that don't actually exist. You
need to use curly braces with commas to maintain a specific order.
FWIW,
Phil
next prev parent reply other threads:[~2013-11-21 3:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-20 19:46 unused space before data offset mismatch kustep
2013-11-21 3:25 ` Phil Turmel [this message]
2013-11-21 3:33 ` NeilBrown
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