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Date:      Sun, 21 Jun 1998 15:22:23 -0600 (MDT)
From:      "Justin T. Gibbs" <gibbs@narnia.plutotech.com>
To:        Berend de Boer <berend@pobox.com>
Cc:        stable@FreeBSD.ORG
Subject:   Re: Adaptec 2940UW with two cables (50? en 68 bit) doesn't work
Message-ID:  <199806212122.PAA08855@narnia.plutotech.com>
In-Reply-To: <01BD9A87.B922F3E0.berend@pobox.com>

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In article <01BD9A87.B922F3E0.berend@pobox.com> you wrote:
> Hai All,
> 
> I'm running FreeBSD 2.2.6-STABLE (cvsupped last friday) on a 
> dial-out/dial-in server. This box contains an Adaptec 2940UW adapter. I've 
> attached two scsi cables. On the 68-bit (Hope I have the num of bits right, 
> but you know what I mean) cable is a drive attached. This one works fine.
> 
> On the 50bit cable I've attached a tape drive. However, this one isn't 
> recognized by FreeBSD. The Adaptec BIOS detects it fine when scanning for 
> devices.
> 
> Relevant portion of /var/log/messages:
> 
> ahc0 <Adaptec 2940 Ultra SCSI host adapter> rev 1 int a irq 5 on pci0:13:0
> ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
> (ahc0:0:0): "IBM DCAS-34330W S65A" type 0 fixed SCSI 2
> sd0(ahc0:0:0): Direct-Access 4134MB (8467200 512 byte sectors)
> (ahc0:3:0): ILLEGAL REQUEST asc:49,0 Invalid message error
> 
> 
> The last message indicates something wrong,  but what?

Go into SCSI select and disable wide negotiation to the device.

--
Justin

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