[5140] in linux-scsi channel archive
SV: Tekram DC-390
daemon@ATHENA.MIT.EDU (Henrik Johansson)
Sun Nov 15 09:56:13 1998
From: "Henrik Johansson" <henrik@lcdata.se>
To: "Matthias Andree" <mandree@sx1.HRZ.Uni-Dortmund.DE>,
"linux-scsi" <linux-scsi@vger.rutgers.edu>
Date: Sun, 15 Nov 1998 15:45:45 +0100
Hi Matthias!
When You´re using both the wide and narrow connector
on Your host-adapter, make sure the adaptors internal
termination is OFF and the scsi-devices termination are ON.
(The chain needs to be terminated in both ends to work
correctly). Also note that if You plan to use an external
device, this might not be possible; most wide-narrow
adapters does not support this with both the internal
channels in use. :-( I only know of the Adaptec 2940U2W,
but there might be others though). ;-)
Good Luck!!
// Henrik J.
P.S. Do not pay any attention to the email in the first letter;
it´s originating from my local mailserver which is using a
masqurading firewall through an PPP-link and is not accecable
from the world. D.S.
-----Ursprungligt meddelande-----
Från: Matthias Andree <mandree@sx1.HRZ.Uni-Dortmund.DE>
Till: linux-scsi <linux-scsi@vger.rutgers.edu>
Datum: den 15 november 1998 15:31
Ämne: Re: Tekram DC-390
>On Sat, Nov 14, 1998 at 03:49:15PM -0600, Robert Johannes wrote:
>> I've the above card which has two internal connectors, one wide and the
>> other narrow. I consequently have two drives, one wide and one narrow,
>> which I'm trying to run off of the two connectors. I have a wide cable
>> for the wide drive, and a narrow cable for the narrow drive.
>>
>> The problems is that when I connect both drives to the respective
>> connectors, the scsi-controller bios does not detect any of them, and
>> proceeds on to say, for each id (0-15), "unexpected disconnect: try to
>> disable wide negotiation or sync negotiation for this device"
>>
>> I've tried disabling that as the message says, but with no success. What
>> am I doing wrong?
>
>You might need to terminate the upper half of data lines at the
>host adaptor. See page 12 of your manual for details. You might also
>try to disable Wide negotiation for all wide devices.
>
>--
>Matthias Andree
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
>the body of a message to majordomo@vger.rutgers.edu
>
-----Ursprungligt meddelande-----
Från: Matthias Andree <mandree@sx1.HRZ.Uni-Dortmund.DE>
Till: linux-scsi <linux-scsi@vger.rutgers.edu>
Datum: den 15 november 1998 15:31
Ämne: Re: Tekram DC-390
>On Sat, Nov 14, 1998 at 03:49:15PM -0600, Robert Johannes wrote:
>> I've the above card which has two internal connectors, one wide and the
>> other narrow. I consequently have two drives, one wide and one narrow,
>> which I'm trying to run off of the two connectors. I have a wide cable
>> for the wide drive, and a narrow cable for the narrow drive.
>>
>> The problems is that when I connect both drives to the respective
>> connectors, the scsi-controller bios does not detect any of them, and
>> proceeds on to say, for each id (0-15), "unexpected disconnect: try to
>> disable wide negotiation or sync negotiation for this device"
>>
>> I've tried disabling that as the message says, but with no success. What
>> am I doing wrong?
>
>You might need to terminate the upper half of data lines at the
>host adaptor. See page 12 of your manual for details. You might also
>try to disable Wide negotiation for all wide devices.
>
>--
>Matthias Andree
>
>-
>To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
>the body of a message to majordomo@vger.rutgers.edu
>
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