Date: Tue, 17 Aug 2004 15:27:40 +0200 From: Wilko Bulte <wb@freebie.xs4all.nl> To: "Greg 'groggy' Lehey" <grog@FreeBSD.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src MAINTAINERS Message-ID: <20040817132740.GA32139@freebie.xs4all.nl> In-Reply-To: <20040817124020.GK88156@wantadilla.lemis.com> References: <200408161043.i7GAhfXs079045@repoman.freebsd.org> <20040817004407.GA81257@wantadilla.lemis.com> <20040817074633.GO30151@darkness.comp.waw.pl> <20040817112900.GA31635@freebie.xs4all.nl> <20040817124020.GK88156@wantadilla.lemis.com>
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On Tue, Aug 17, 2004 at 10:10:20PM +0930, Greg 'groggy' Lehey wrote.. > On Tuesday, 17 August 2004 at 13:29:00 +0200, Wilko Bulte wrote: > > On Tue, Aug 17, 2004 at 09:46:33AM +0200, Pawel Jakub Dawidek wrote.. > >> On Tue, Aug 17, 2004 at 10:14:07AM +0930, Greg 'groggy' Lehey wrote: > >> +> On Monday, 16 August 2004 at 10:43:41 +0000, Pawel Jakub Dawidek wrote: > >> +> > pjd 2004-08-16 10:43:41 UTC > >> +> > > >> +> > FreeBSD src repository > >> +> > > >> +> > Modified files: > >> +> > . MAINTAINERS > >> +> > Log: > >> +> > Add myself as geom_raid3 maintainer. > >> +> > >> +> RAID-3? How are you going to run RAID-3 on a general purpose > >> +> computer? > >> > >> Where is the problem exactly? > > > > I guess Greg wonders about the suitability of RAID-3 for general > > purpose I/O patterns. Nothing else. > > On the contrary. RAID-3 requires byte-level striping, which is > ridiculous on the hardware that FreeBSD supports. I suspect that pjd RAID-3 IIRC uses a dedicated parity disk, and small stripes. I don't think it must be bytelevel striping. Just small enough stripes that all disks contribute to every I/O -- Wilko Bulte wilko@FreeBSD.org
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