Date: Wed, 26 Sep 2007 08:23:25 -0400 From: "Brian A. Seklecki" <lavalamp@spiritual-machines.org> To: Norberto Meijome <freebsd@meijome.net> Cc: Olivier Nicole <on@cs.ait.ac.th>, questions@freebsd.org Subject: Re: OT: how to increase RAID space Message-ID: <1190809405.3501.2.camel@localhost.localdomain> In-Reply-To: <20070627202159.4bf04f72@localhost> References: <200706270730.l5R7U9hx007223@banyan.cs.ait.ac.th> <20070627195043.24d373fd@localhost> <200706271007.l5RA7WY5033736@banyan.cs.ait.ac.th> <20070627202159.4bf04f72@localhost>
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UFS/FFS probably wont deal well with the underlying "logical"-physical
disk size changing (bytes/section, number of sectors, etc.). Even if it
was pure concatenation.
No, an LVM2/VxFS is needed.
Also, shops that can afford SAN and high end RAID tend to be able to
provision temp space to store media while they expand and re-create
volumes.
~BAS
On Wed, 2007-06-27 at 20:21 +1000, Norberto Meijome wrote:
> On Wed, 27 Jun 2007 17:07:32 +0700 (ICT)
> Olivier Nicole <on@cs.ait.ac.th> wrote:
>
> > > that's what a volume manager (such as LVM2 in linux, Veritas Vol Mgr , and
> > > vinum (I think) in FBSD 4 ) do - they abstract the hardware storage layer.
> >
> > That is hardware RAID.
>
> yes, i realise you mentioned it . You'd imagine some raid card manufacturers
> would have something as flexible as LVM built into their cards by now... maybe
> someone does already.. ?
>
> _________________________
> {Beto|Norberto|Numard} Meijome
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