Micropolis 1991w disks and Adaptec 2940 ultra (off topic)

[Jess Johnson]

You can buy adapters from Widescsi Drives to a Narrow cable that work fine. You lose the
high ID bit and of course it wont do Wide transfers, but my experience has been they
work fine.

Putting a narrow drive on a wide cable only requires that you properly terminate
the wide cable, as the narrow drive can only terminate the low bits. I generally put
all my internal drives on one cable, using the adapters so I will still have the
external connector free. I just make sure to put the narrow drives on the cable inbetween
the host adapter and the wide drive that terminates the chain.


---
Jess Johnson


According to Karl Pielorz:
> It won't work...
> 
> To run a Wide drive you need a Wide controller... If you have a Wide
> controller and Narrow drives you can rework things with adaptors / cabling
> etc. - but Wide (68 Way) drives on Narrow controllers (50 Way) is a no-go I'm
> afraid...
> 
> Regards,
> 
> Karl Pielorz
> 
> Brian Ristuccia wrote:
> > 
> > Anyone know what the cabling / termination / functionality issues would be
> > regarding the connection of Micropolis 1991w (68 pin connector) disk to my
> > Adaptec 2940 ultra (not a wide card -- 50 pins)
> > 
> > --
> > Brian Ristuccia
> > brianr at osiris.ml.org
> > bristucc at baynetworks.com
> > bristucc at cs.uml.edu
>