gmirror, gpart and MBR vs GPT in the Handbook

[Julien Cigar]

If you want to use GPT with gmirror you may want to mirror each
partition instead of the whole disk.

For example on my box I have the following: https://dpaste.de/Rb3S

On Sun, Dec 01, 2013 at 11:21:58AM -0500, Mike. wrote:
> On 11/30/2013 at 2:17 PM Warren Block wrote:
> 
> |On Sat, 30 Nov 2013, Mike. wrote:
> |
> | [snip]
> |
> |> Is there a specific reason why MBR was used in the Handbook
> |> example for creating a mirror, instead of GPT?
> |
> |Yes, there was, see the last paragraph of the Metadata Issues 
> |subsection, 
> |http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/geom-m
> irror.html#geom-mirror-metadata
> |
> |[snip]
>  =============
> 
> 
> A question about the wording of that paragraph.  The second
> sentence states:
> 
> "Because GPT partition schemes also store metadata at the end of
> the disk, mirroring full GPT disks with gmirror(8) is not
> recommended."
> 
> 
> The word "full" is ambiguous.  Is it to mean, "full" as in 'full
> of data', or "full" as in 'the entire disk'?
> 
> 
> Thanks.
> 
> 
> 
> 
> 
> 
> 
> 
> 
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