Xref: utzoo comp.unix.xenix:7912 comp.sys.ibm.pc:35742
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!virtech!cpcahil
From: cpcahil@virtech.UUCP (Conor P. Cahill)
Newsgroups: comp.unix.xenix,comp.sys.ibm.pc
Subject: Re: DPT controller
Message-ID: <1230@virtech.UUCP>
Date: 4 Oct 89 23:39:46 GMT
References: <1989Oct3.151752.13639@ka3ovk.uucp>
Organization: Virtual Technologies Inc
Lines: 42

In article <1989Oct3.151752.13639@ka3ovk.uucp>, albers@ka3ovk.uucp (Jon Albers) writes:
> I have seen people mentioning the DPT disk-cacheing controller, and it sounds
> interesting -- who makes it?

It's made by Distributed Processing Technologies, Inc (I think).

> Where can I get some information about it?

I bought mine from Tangent computer Inc (1-800-223-6677).

> Will
> it work with EDSI drives?

Yes.

>  I would like to install it in a Compaq 386/33 with
> 2 320MB EDSI drives, am I going to see better performance than with just the
> Compaq controller?

I don't know what compaq uses for a controller, but depending upon the 
amount of disk cache that you buy (you can get up to 12 meg) you should 
gain a significant performance gain.

> Does SCO/Should SCO UNIX V know about this controller?

It doesn't have to know.  The controller appears as a standard ST-506 and
will present a "logical" disk layout (#heads, #cyls, #secs/trk) to allow 
most any drive to work with the os.

The low level format is menu driven, reads the manufacturers bad block
table from the disk so you don't have to re-enter it, and allows you to
configure how the disk appears to the os (although it automatically 
selects the most efficient/compatible numbers and asks you if you
want to use them).

I have the DPT with 2 1/2 meg of cache and am real pleased with it's
performance.
-- 
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| Conor P. Cahill     uunet!virtech!cpcahil      	703-430-9247	!
| Virtual Technologies Inc.,    P. O. Box 876,   Sterling, VA 22170     |
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