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Date: Wed, 21 Apr 2010 16:04:50 +0400
From: "Andrey V. Elsukov" <bu7cher@yandex.ru>
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To: Lister <lister@kawashti.org>
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Cc: Marcel Moolenaar <marcel@FreeBSD.org>, freebsd-geom@freebsd.org
Subject: Re: OCE and GPT
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On 21.04.2010 13:21, Lister wrote:
> I have a 5TB RAID5 (/dev/da0) on a 3Ware controller supporting OCE. I
> partitioned it into p1, p2 & p3 using gpt on FreeBSD-7.1-RELEAE.
> P3 is 3.5TB and is the one I need to expand by adding another 1TB drive
> to the RAID. It is now 87% full.
>
> Both gpt and gpart don't allow resizing a partition.
> Of course, backing up the RAID to another is not an option.
>
> I'm in a rather desperate situation and I'm willing to do whatever it
> takes. If there's no current software solution, I'm willing to use a hex
> editor to edit the disk directly if someone could advise me of the
> layout of GPT as created by gpt- and gpart if different. I used to do
> this on MBR disks at times of necessity.

I published patch to add resize feature to GEOM PART class some time ago:
http://lists.freebsd.org/pipermail/freebsd-geom/2010-March/003955.html

-- 
WBR, Andrey V. Elsukov