On Thu, 2005-04-21 at 10:39 +0200, Claus Guttesen wrote:
> Hi.
>
> I may implement (g)vinum to stripe two 2 TB raid 5 volumes into a
> single 4 TB vinum-volume. The volumes reside on a atabeast doing the
> raid 5. The server is a 5.4 RC2 doing nfs on i386.
>
> According to some threads gvinum may not be completely stable (in 5.3,
> http://unix.derkeiler.com/Mailing-Lists/FreeBSD/current/2004-11/0537.html)
> when doing raid 5 but works fine when striping.
>
> Should I go vinum or gvinum? Will newfs have problems with a 4 TB
> volume? Are there any performance-degradation doing striping?
In addition to vinum and gvinum, have you considered geom_stripe? See
gstripe(8) for details. I've been using it for a while on 5-STABLE to
join two 65 GB slices on two different drives into a single 130 GB
device (/dev/stripe/data in my case). I have had no stability problems,
which is why I mention this as a possible solution for you if you're
worried about the stability of vinum or gvinum in 5.x.
Cheers,
Paul.
--
e-mail: [EMAIL PROTECTED]
"Without music to decorate it, time is just a bunch of boring production
deadlines or dates by which bills must be paid."
--- Frank Vincent Zappa
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