From owner-freebsd-stable@FreeBSD.ORG  Wed Feb 16 15:45:42 2005
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Date: Wed, 16 Feb 2005 09:45:40 -0600
From: Scot Hetzel <swhetzel@gmail.com>
To: Charles Erik McDonald <charles-erik@mcdonald.no>
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cc: freebsd-stable@freebsd.org
Subject: Re: Strange disk problems make the system lock up
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On Wed, 16 Feb 2005 14:02:12 +0100, Charles Erik McDonald
<charles-erik@mcdonald.no> wrote:
> 
> Hi,
> 
> I have a problem that arises once in a while with my IDE drives under
> FreeBSD 5.3
> 
> uname:
> FreeBSD bastion 5.3-RELEASE-p5 FreeBSD 5.3-RELEASE-p5 #23: Mon Feb  7
> 13:28:32 UTC 2005
> 
> I have two large disks:
> 
> /dev/ad2       144G    124G    9.2G    93%    /mnt/sp1604n
> /dev/ad3       226G    202G    5.2G    98%    /mnt/wd2500pb
> 
> Each with only one partition, where fdisk on /dev/ad3 gives the
> following information:
> 
> The data for partition 1 is:
> sysid 165 (0xa5),(FreeBSD/NetBSD/386BSD)
>    start 63, size 488392002 (238472 Meg), flag 80 (active)
>        beg: cyl 0/ head 1/ sector 1;
>        end: cyl 1023/ head 254/ sector 63
> 
The devices be something like /dev/ad2s1a or /dev/ad3s1a.

Did you use disklabel on these disks (/dev/ad2s1 and /dev/ad3s1) to
create a partition on the slice?

Do you have any error messages related to ad2 or ad3 in /var/log/messages?

Scot