Date: Mon, 7 Sep 2009 10:40:06 +0200 From: "Daniel Eriksson" <daniel@toomuchdata.se> To: <freebsd-questions@freebsd.org> Cc: Mark Stapper <stark@mapper.nl> Subject: RE: ZFS and DMA read error Message-ID: <4F9C9299A10AE74E89EA580D14AA10A635E9C8@royal64.emp.zapto.org> In-Reply-To: <4A9F8F96.3090806@mapper.nl> References: <4A9B731E.9050400@mapper.nl><ade45ae90908311122s685a6aa7o6dcc49a48c08000e@mail.gmail.com> <4A9CBDBB.3060403@mapper.nl> <4F9C9299A10AE74E89EA580D14AA10A635E9C3@royal64.emp.zapto.org> <4A9F8F96.3090806@mapper.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
Mark Stapper wrote: > Yeah, i did the long SMART selftest three times now, each of which it > failed on the same LBA address. I assume 'smartctl -a /dev/adX' reports that the read test failed at LBA XXX something? > Why would I want to clear my driver before I run these tests? In this case it's not really clearing the drive you are aiming for, it is to write to every sector. If you have a failed sector (which you do), writing to it will force the drive firmware to remap the sector. As far as I know, most drives will not remap an unreadable sector until it is written to. /Daniel Eriksson
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4F9C9299A10AE74E89EA580D14AA10A635E9C8>