Date: Fri, 20 Mar 2009 15:30:11 +0000 (GMT) From: "Mark Powell" <M.S.Powell@salford.ac.uk> To: Mark Powell <M.S.Powell@salford.ac.uk> Cc: kevin <kevinxlinuz@163.com>, FreeBSD Current <freebsd-current@freebsd.org>, Daniel Eriksson <daniel@toomuchdata.com> Subject: Re: Apparently spurious ZFS CRC errors (was Re: ZFS data error without reasons) Message-ID: <20090320152737.D641@rust.salford.ac.uk> In-Reply-To: <20090320102824.W75873@rust.salford.ac.uk> References: <49BD117B.2080706@163.com> <4F9C9299A10AE74E89EA580D14AA10A635E68A@royal64.emp.zapto.org> <49BE4EC1.90207@163.com> <20090320102824.W75873@rust.salford.ac.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, 20 Mar 2009, Mark Powell wrote: > As this same hardware worked, well with 7 for a long time, and can work > perfectly with 8 for several days until the errors strike, this seems like > some curious 8 problem? Hmmm. Perhaps I'm not being fair on 8. Just had a look at my loader.conf for 7 and I can see that I used to run with every zfs*disable on. I've just rebooted 8 with: vfs.zfs.cache_flush_disable: 1 vfs.zfs.mdcomp_disable: 1 vfs.zfs.prefetch_disable: 1 vfs.zfs.zil_disable: 1 hw.ata.wc: 1 The current fs which produced errors on every scrub now reports no errors. I now need to find which option fixed it. I suspect hw.ata.wc. Is this still a known issue? 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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20090320152737.D641>