Adaptec Fast-Wide & IBM DHFS Drive

[Steven N. Hirsch]

On Sat, 27 Sep 1997, Daniel M. Eischen wrote:

> 
> > I picked up an OEM version of an IBM DFHS S4W drive (aka UltraStar XP); 
> > built for Apple.  It's a fast wide single-ended drive, 7200rpm., 4.1GB
> > capacity.  A screamer, but it absolutely refuses to work if tagged
> > queueing is enabled in the driver. 
> 
> Perhaps it doesn't support tagged queueing?

In that case, shouldn't it simply refuse negotiation for it?  This is one
of their top-of-the-line units, and I'd find it quite hard to believe that
it didn't support this feature.

> You can turn off tagged queueing by on a device-by-device basis,
> if you wish to enable tagged queueing for other devices on the bus.

Is that in the mainstream driver currently?  I'll have another look. 

> > In any case, if any of the aic7xxx driver developers have ideas, let me
> > know what I can do to capture a screen of data?
> 
> Force a panic so that you can capture the first few messages?

Ah, yes, but _where_?  I'm not familiar at all with the driver anymore.

Steve