From: Atlant Schmidt [atlantnospam@mindspring.com]
Sent: Monday, June 03, 2002 1:30 PM
To: Info-VAX@Mvb.Saic.Com
Subject: Re: IDE controller in Alphaserver 4100????

Dirk Munk wrote:

> The DQ driver does not support just any IDE controller. For instance in
> my PWS500au there is a IDE controller, but VMS does not support it, not
> even for the CD-Rom. That makes it very unlikely that you can get such a
> setup running.

Dirk, I think you may be confused about what you have there.
If a PWS500au is the thing I remember as being a "Miata", then
the IDE chip in there (a Cypress, I think) is certainly supported.
(It was the first platform we really supported IDE/ATA/ATAPI
drives upon and the one I did all my early development upon.)
On the other hand, if you have a PWS500a (White box, no "u"),
then you're right, the <can't recall; Intel?> chip in there isn't
supported.

But even there, I think the issues are primarily auto-config
issues. In non-DMA mode, one IDE controller isn't a whole
lot different than another IDE controller and if you can get a
DQ device properly configured, you might find it works.
(Emphasis on "might".) Heck, for about US$5, you can
probably buy a new PCIbus IDE card with a fully-supportable
chip.

Atlant