Date: Thu, 8 Dec 2005 17:31:02 -0500 From: Brian Fundakowski Feldman <green@freebsd.org> To: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no> Cc: freebsd-stable@freebsd.org Subject: Re: FreeBSD 6.0 as storage server with raid5? Message-ID: <20051208223102.GE98704@green.homeunix.org> In-Reply-To: <20051208203033.3b56ebe4.torfinn.ingolfsen@broadpark.no> References: <20051208001857.68ac4fef.torfinn.ingolfsen@broadpark.no> <43983204.9080609@fer.hr> <20051208203033.3b56ebe4.torfinn.ingolfsen@broadpark.no>
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On Thu, Dec 08, 2005 at 08:30:33PM +0100, Torfinn Ingolfsen wrote: > On Thu, 08 Dec 2005 14:15:48 +0100 > Ivan Voras <ivoras@fer.hr> wrote: > > > You could use graid3(8) - it has data+parity components like raid5. > > What about write performance? Based on RAID3 documentation I have read > (on the 'net, so I cannot vouch for the correctness of it), you will get > worse write performance than with RAID5. Does anybody have some real > numbers here? > > > I've been using it for more than a year now and didn't have problems > > with it. Didn't have to try recovery from a dead disk also, but > > should work ok. > > I would prefer a firsthand "crash" report that tells what happened, and > a step-by-step "here's how I fixed it" guide, but ok. :-) It is REALLY FAST! Make sure you use 6.0-RELEASE or later so that you have the fix for lock-ups in certain usage patterns and also configure it for performance with "graid3 label -r". -- Brian Fundakowski Feldman \'[ FreeBSD ]''''''''''\ <> green@FreeBSD.org \ The Power to Serve! \ Opinions expressed are my own. \,,,,,,,,,,,,,,,,,,,,,,\
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