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Date:      Sun, 19 Jun 2005 22:44:03 +0100
From:      Alex Zbyslaw <xfb52@dial.pipex.com>
To:        Pavel Duda <element@email.cz>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: DDS Tape problems
Message-ID:  <42B5E723.7080503@dial.pipex.com>
In-Reply-To: <d94gbc$isg$1@sea.gmane.org>
References:  <d94gbc$isg$1@sea.gmane.org>

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Pavel Duda wrote:

> Hi,
> I have problem with my DDS-3 type drive. I'm able to write on it but 
> not read data back. If I try to read them I get card dump and tape 
> drive hangs up. I have tried to upgrade firmware but problem remains. 
> Does somebody have experience with this ?
>
> My specs :
> FreeBSD 5.2.1, generic kernel, x86 (P3), SCSI card is Adaptec AHA2940 
> and tape drive Python 04106.

Not terribly helpful, but I have a DAT2 working with an Adaptec 2940A.  
It's worked since forever and is fine with 5.4 though I never ran 
5.1/2/3.  Is the machine it's attached to dual-boot?  I.e. can you test 
the tape drive in Windows, or Linux for example?  (Well, they have to be 
good for something :-))   Is this a recent problem or is this the first 
time you've tried using this drive?  Can you try another SCSI adapter?  
I've run mine (for testing only) off the cheapest rubbish I got free 
with a SCSI CDRW and it was fine.

The only other guess would be termination.  Has anything else on your 
SCSI chain changed?  Is the terminator properly plugged in?

--Alex




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