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Date:      Sat, 30 Nov 2013 14:30:23 -0700 (MST)
From:      Warren Block <wblock@wonkity.com>
To:        "Mike." <the.lists@mgm51.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: gmirror, gpart and MBR vs GPT in the Handbook
Message-ID:  <alpine.BSF.2.00.1311301418440.99113@wonkity.com>
In-Reply-To: <201311301459580085.0648D9AC@smtp.24cl.home>
References:  <201311301303210813.05DE187E@smtp.24cl.home> <20131130190742.2b1d7e36.freebsd@edvax.de> <201311301459580085.0648D9AC@smtp.24cl.home>

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On Sat, 30 Nov 2013, Mike. wrote:

> On 11/30/2013 at 7:07 PM Polytropon wrote:
>
> |On Sat, 30 Nov 2013 13:03:21 -0500, Mike. wrote:
> |> Is there a specific reason why MBR was used in the Handbook
> |> example for creating a mirror, instead of GPT?   Or was it
> just
> |> a preference of the person who wrote that Handbook page?
> |
> |Refer to this document for a demonstration which is more
> |directed toward GPT:
> |
> |http://www.wonkity.com/~wblock/docs/html/gmirror.html
> |
> |The Handbook's mentioning of MBR, even though commands
> |involved are centered around gpart (instead of the more
> |traditional tools fdisk and bsdlabel) seems to suggest
> |that an update might be indicated. :-)

fdisk and bsdlabel are not needed, gpart does everything they can do.

> Excellent, that site looks to be a very good resource.

That document shows how to mirror GPT partitions, but there are definite 
downsides.  I really should update that article.

At least for now, MBR is still the way to go for mirroring a whole 
drive.



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