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Date:      Thu, 21 Sep 2006 06:37:53 +0100
From:      Matthew Seaman <m.seaman@infracaninophile.co.uk>
To:        "Marc G. Fournier" <freebsd@hub.org>
Cc:        freebsd-questions@freebsd.org, freebsd-geom@freebsd.org
Subject:   Re: geom - help ...
Message-ID:  <45122531.6010503@infracaninophile.co.uk>
In-Reply-To: <20060920222944.M1031@ganymede.hub.org>
References:  <20060920222944.M1031@ganymede.hub.org>

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Marc G. Fournier wrote:
>=20
> So, again, if I'm reading through things correctly, I'll have to do
> something like:
>=20
> gstripe st1 da1 da2
> gstripe st2 da3 da4
> gmirror drive st1 st2
> newfs drive

That's the wrong way round, I think.  If you lose a drive, then you've
the whole of one of your stripes and have no resilience.  Shouldn't you
rather stripe the mirrors:

   gmirror gm0 da1 da2
   gmirror gm1 da3 da4
   gstripe gs0 gm0 gm1
   newfs gs0

This way if you lose a drive then only one of your gmirrors loses
resilience and the other half of your disk space is unaffected.

	Cheers,

	Matthew

--=20
Dr Matthew J Seaman MA, D.Phil.                       7 Priory Courtyard
                                                      Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey         Ramsgate
                                                      Kent, CT11 9PW


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