From owner-freebsd-scsi  Tue Apr 16  6:49:44 2002
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Date: Tue, 16 Apr 2002 08:47:22 -0500 (CDT)
From: Robert Johannes <rjohanne@piper.hamline.edu>
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To: "M. Warner Losh" <imp@village.org>
Cc: scsi@FreeBSD.ORG
Subject: Re: How to get 160MB/s LVD drives to use 160MB/s
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Ultra2 160mb/s drives need an SCA adapter that is designed to support
ultra2 160mb/s.  If your SCA adapter is a plain-old 40mb/s version, that
would be why you are only getting that speed.

robert

On Tue, 16 Apr 2002, M. Warner Losh wrote:

> I'm runing 4.5-release.  From my dmesg:
> 
> Notice that I'm only getting 40MB/s transfers.  The BIOS detects them
> at 40MB/s, even though I have the max transfer set to 160.  It does
> this with one or two drives on the bus.  They are SCA drives in
> adapters (any chance it is a jumper on the adapter?).
> 
> How do I get 160MB/s on these drives?  As near as I can tell from the
> spec sheets, they both should support 160MB/s.
> 
> Warner
> 
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