"Michael L. VanLoon -- HeadCandy.com" writes:
> >Quantums are particularly known for the problems they have with the
> >controller. 
> 
> Is there some reason Quantum drives and NCR controllers don't get
> along?  I've run three different Quantum drives on my BusLogic card
> with no problems.  Is this NCR-specific?

Its fully to do with the buggy NCR driver. It has a mysterious race
condition in it somewhere as well as a bunch of probable cache
coherency bugs. The result of all this is that it just doesn't work
with certain drives in certain revs of the driver.

The newest driver, though, works just fine with all the Quantum drives
I use. I think that Ted was accidently using a slightly old version of
the driver.

Generally, what I've found is that the faster the machine, the more
likely the driver is to work. The faster the drive, the less likely
the driver is to work. Quantums appear to just reply to certain SCSI
commands in a way that nukes older versions of the driver -- I don't
know why.

Someone volunteering to rewrite the NCR driver would make the world A
Much Better Place, by the way. The current one SUCKS.

Perry