From owner-freebsd-stable  Fri Jan 29 14:57:17 1999
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Date: Fri, 29 Jan 1999 14:53:52 -0800
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To: Wes Santee <wes@bogon.net>
CC: freebsd-stable@FreeBSD.ORG
Subject: Re: 2nd SCSI drive not detected. Why?
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Do you have proper termination of the 68pin channel. Wide-SCSI is
extremely sensitive to this and I find many people using
Fast-SCSI without a terminator don't notice problems until they
introduce a Wide drive into the mix.

FWIW I have a 2940UW with two Ultra-Wide SCA drives using SCA to 68pin
converter. I couldn't access the second drive unless I enabled
termination on the second drives SCA converter.

Michael.


Wes Santee wrote:

> Hi all.  I wanted to kill 2 birds with one stone last night so I
> upgraded my 3.0-release to 3.0-stable and installed a new hard drive.
>
> The stable upgrade was fairly smooth, but adding the new drive didn't
> go so well.  I'm not sure if this is a -stable thing, or I need to
> do something else.
>
> The drives are hooked up to an Adaptec 2940UW.  The main drive is
> hooked up to the SCSI-2 (50-pin) internal connector at SCSI ID 0,
> while the new drive is a Seagate 9.1GB SCSI-3 hooked up to the
> 68-pin internal connector at SCSI ID 15.
>
> The controller detects the drive just fine.  The OS, on the other
> hand, doesn't.
>
> While FreeBSD is booting it detects that a cable is present on both
> internal connectors.  It also detects that there are 3 BIOS drives
> (floppy, both SCSI drives), but it fails to actually map da1 to the
> drive itself.
>
> Is there something else I need to be doing here to get the OS to
> recognize the drive correctly?
>
> Cheers,
> -Wes
> wes@bogon.net
>
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