Re: Problems with DLT tape drive.

[Andrew R Reid <andrew@cpplating.com.au>]

Thank you Doug.

I did what you sugessted and it works fine.  I will reconfigure my scsi
busses so that all the 25 pin scsi devices are on the same controller with
no other devices.

I suppose the reason I was having problems is that there is no termination
on the pins that arn't used in the 25 pin cables.  Should have thought of
that myself!

> For testing purposes you could install a terminator on the tape drive, 
> leaving the scanner and zip drive disconnected long enough to reboot the 
> machine and try a backup.  The SCSI bus layout you list is somewhat 
> questionable as far as reliability is concerned, and this test should 
> eliminate a lot of the possible variances that could result in bus errors.  
> Another option is to configure the BIOS on the 2930 card to only allow 
> async transfers to the tape drive.  That can help with bus errors on 
> questionable busses.
> 
> -- 
>   Doug Ledford <dledford@redhat.com>     919-754-3700 x44233
>          Red Hat, Inc. 
>          1801 Varsity Dr.
>          Raleigh, NC 27606

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