WD ESDI cont'lers. Was (Re: Xenix compatibility with ESDI controllers.)

[Larry Dighera]

In article <368 at merk.UUCP> brennan at merk.UUCP (Rich Brennan) writes:
>
>I am going to get some more disk storage, but instead of buying an
>additional disk of the same type I currently have, I'd like to get an
>ESDI disk. I'm running 386 Xenix 2.2.1, and it would be nice to not
>have to upgrade to their ESDI version, which (according to their docs)
>only handles 1024 cylinders.
>
>I've been told that the WD1007 controller supports an ESDI controller
>interface, but looks like the standard ST506 controllers to Xenix. Is this
>true? And if so, anyone have leads on a good place to buy them?

You're right about the WD1007's translation capability; It can make an
ESDI drive look like a 17-sectored ST506.

The WD1007A-WAH and WD1007A-WA2 are 16-bit ESDI Hard and Hard/Floppy 
controllers respectively.  They support 1:1 interleave and come with
BIOS extension ROM. The WD1007A-WAH has a retail price of $320 and the
WD1007A-WA2 retails for $350.  I can get them for $249 and $279.

If you want one, you can give me a call at (714) 842-2862 (voice), and
we can work out the arrangements.  Is the ESDI drive you plan on purchasing
hard or soft sectored?  

Larry Dighera

-- 
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