Adaptec termination problem...

Robert G. Brown rgb at phy.duke.edu
Wed May 27 10:33:45 PDT 1998


On Sat, 23 May 1998, OLK wrote:

> Try 2xIBM+1xConner+CDROM with AHA-2940 and you'll see only one
> combination
> working :
> IBM=ID0,IBM=ID1,CDROM=ID2,Conner=ID3 or higher and Terminated.
> Chances are 99.9%, that all other combinations especially with one
> terminated IBM-HD and other(IBM) not, will fail.
> Rule of Thumb: Adaptec+IBM's+Whatever --> Desaster

Gee, this is really interesting.  In the sense of the Chinese curse,
of course.  Does this mean that "Internal, jumpered termination
doesn't work on IBM drives" even if they are the only drive on a given
SCSI branch?  What about external termination?  If you run a computer
store, you presumably have tried this -- do they have terminators that
plug onto the ends of those nifty internal ribbon cables?

   rgb

Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu




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