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Date:      Wed, 13 Feb 2013 00:49:00 +0700
From:      Eugene Grosbein <egrosbein@rdtc.ru>
To:        Robert <traveling08@cox.net>
Cc:        "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>
Subject:   Re: Cant remove raid from Hard drive
Message-ID:  <511A808C.5020805@rdtc.ru>
In-Reply-To: <20130212075317.002dd257@zorro>
References:  <20130212075317.002dd257@zorro>

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12.02.2013 22:53, Robert пишет:
> Greetings
> 
> I am trying to reuse a 500G harddrive that was previously part of an
> NVIDIA raid in a windows box.
> 
> I have tried to clean the disk using "dd if=/dev/zero of=/dev/raid/r0
> bs=1m". The dd program completed but the raid info is still on the disk,

That's because RAID metadata is stored outside RAID itself (/dev/raid/r0),
it occupies last sectors of physical disks. It can be erased with "graid delete" command,
please read man graid. You need operate on its "Geom name" from "graid list | fgrep Geom" command,
not on symbolic name /dev/raid/r0. You may also need -f flag (again, read man graid).

Eugene Grosbein



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