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From: "Ted Mittelstaedt" <tedm@toybox.placo.com>
To: <darryl@osborne-ind.com>, <freebsd-questions@freebsd.org>
Date: Thu, 31 Jan 2008 19:20:56 -0800
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Cc: 
Subject: RE: SATA question
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> -----Original Message-----
> From: owner-freebsd-questions@freebsd.org
> [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Darryl Hoar
> Sent: Tuesday, January 29, 2008 6:59 AM
> To: freebsd-questions@freebsd.org
> Subject: SATA question
> 
> 
> Well,
> maybe I spoke to soon.  While looking at dmesg in prep for doing
> a custom kernel for my new server, I noticed an oddity.
> 
> ad4 - DMA limited to UDMA33, device found non-ata66 cable.
> ad4 - <SAMSUN HE160HJ JF800-24>
> 
> Is this telling me the system recognized my 
> 160GB 7.2K RPM Serial ATA 3Gbps 3.5-in Cabled Hard Drive as 
> a UDMA33 ?
> 

No doubt, a pciconf followed by insertion of the ID into the
ata detection routines would help - assuming your sata chipset
is supported.

You don't have the entire dmesg here but it looks like it's
using the generic driver.

Ted