Date: Sat, 19 Jun 2010 20:18:52 -0500 From: Adam Vande More <amvandemore@gmail.com> To: Jerry Bell <jerry@nrdx.com> Cc: freebsd-questions@freebsd.org Subject: Re: Need help with SATA disk timing out in 8.1 Beta Message-ID: <AANLkTinkQ3dStlcRXCWiuiCzWyCj-QTrZYaysiqXBki0@mail.gmail.com> In-Reply-To: <4C1AFFF5.1070000@nrdx.com> References: <4C1AFFF5.1070000@nrdx.com>
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On Fri, Jun 18, 2010 at 12:11 AM, Jerry Bell <jerry@nrdx.com> wrote: > I am having all sorts of problems with drives in a new server. > I have a 450G sata drive that hold my root partition, works great, no > issues. > I have a second, 1TB drive that has been all sorts of trouble. When > writing to this disk, I occasionally see errors like this: > > Jun 17 07:40:36 www3 kernel: ad8: WARNING - WRITE_DMA48 UDMA ICRC error > (retrying request) LBA=1564898207 > <snip> > I am at the end of my ability to troubleshoot this. Could this be a > problem with FreeBSD 8.1 beta and not the drives after all? > I have seen a reference to a patch for previous versions that increase the > DMA timeout time to 10 or 15 seconds, which fixes problems, but I am not > certain that would fix my particular issue. > You could use ahci which might workaround the issue and give you better performance. load it from /boot/loader.conf beware it will change names of detected devices, you may want to consider using glabel. -- Adam Vande More
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