Skip site navigation (1)Skip section navigation (2)
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>

next in thread | previous in thread | raw e-mail | index | archive | help
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



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?AANLkTinkQ3dStlcRXCWiuiCzWyCj-QTrZYaysiqXBki0>