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Date: Sun, 27 Jan 2013 20:05:12 +0100
From: Jiri Mikulas <konfer@mikulas.com>
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To: freebsd-current@freebsd.org
Subject: Re: Zpool surgery
References: <20130127103612.GB38645@acme.spoerlein.net>
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On 2013/01/27 15:31, Steven Hartland wrote:
> ----- Original Message ----- From: "Ulrich Spörlein" <uqs@FreeBSD.org>
>
>> I have a slight problem with transplanting a zpool, maybe this is not
>> possible the way I like to do it, maybe I need to fuzz some
>> identifiers...
>>
>> I want to transplant my old zpool tank from a 1TB drive to a new 2TB
>> drive, but *not* use dd(1) or any other cloning mechanism, as the pool
>> was very full very often and is surely severely fragmented.
>>
>
> Cant you just drop the disk in the original machine, set it as a mirror
> then once the mirror process has completed break the mirror and remove
> the 1TB disk.
>
> If this is a boot disk don't forget to set the boot block as well.
>
>    Regards
>    Steve

Hello
before you start rebuilding mirror this way, don't forget

zpool set autoexpand=on tank

after you drop old 1TB disc from config, space will be expanded to new 
disc size.

Regards
Jiri