Date: Thu, 26 Mar 2009 13:23:42 +0000 (GMT) From: "Mark Powell" <M.S.Powell@salford.ac.uk> To: Peter Jeremy <peterjeremy@optushome.com.au> Cc: FreeBSD Current <freebsd-current@freebsd.org>, ticso@cicely.de Subject: Re: Apparently spurious ZFS CRC errors (was Re: ZFS data error without reasons) Message-ID: <20090326132022.W64065@rust.salford.ac.uk> In-Reply-To: <20090326101303.GJ56137@server.vk2pj.dyndns.org> References: <4F9C9299A10AE74E89EA580D14AA10A635E68A@royal64.emp.zapto.org> <49BE4EC1.90207@163.com> <20090320102824.W75873@rust.salford.ac.uk> <20090320152737.D641@rust.salford.ac.uk> <20090325105613.55624rkkgf2xkr6s@webmail.leidinger.net> <20090325103721.G67233@rust.salford.ac.uk> <20090325135528.21416hzpozpjst8g@webmail.leidinger.net> <20090325125930.U73916@rust.salford.ac.uk> <20090325152128.2389990h7v6a02co@webmail.leidinger.net> <20090325152940.GB16409@cicely7.cicely.de> <20090326101303.GJ56137@server.vk2pj.dyndns.org>
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On Thu, 26 Mar 2009, Peter Jeremy wrote: > On 2009-Mar-25 16:29:40 +0100, Bernd Walter <ticso@cicely7.cicely.de> wrote: >> I wouldn't be surprised if the problem is in the drive firmware. >> Preread and wc both have the potential to put a lot load to the drives >> and can trigger bugs that otherwise wouldn't matter. > > I'll second this. Whilst stress-testing ZFS, I've managed to wedge a > Samsung drive to the point where it needed a power-cycle to recover > (HD103UJ 1AA01112 if anyone wants to know what to avoid). Thanks for the info. I have one of those and was wondering about how it'd perform with zfs. As an aside, do you have any drive recommendations? Or is 'reliable zfs performance on consumer SATA drives' an oxymoron? :( Cheers. -- Mark Powell - UNIX System Administrator - The University of Salford Information & Learning Services, Clifford Whitworth Building, Salford University, Manchester, M5 4WT, UK. Tel: +44 161 295 6843 Fax: +44 161 295 5888 www.pgp.com for PGP key
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