Path: utzoo!mnetor!tmsoft!torsqnt!jarvis.csri.toronto.edu!rutgers!att!watmath!watserv1!econadm5
From: econadm5@watserv1.waterloo.edu (BENTLEY BH - ECONOMICS)
Newsgroups: comp.sys.atari.st
Subject: Re: HD questions..
Keywords: dual dma bus
Message-ID: <213@watserv1.waterloo.edu>
Date: 25 Nov 89 03:26:27 GMT
References: <3347@jhunix.HCF.JHU.EDU> <5670@umd5.umd.edu>
Reply-To: econadm5@watserv1.waterloo.edu (BENTLEY BH - ECONOMICS)
Distribution: na
Organization: U. of Waterloo, Ontario
Lines: 42

In article <5670@umd5.umd.edu> matthews@umd5.umd.edu (Mike Matthews) writes:
>article <3347@jhunix.HCF.JHU.EDU> ins_bac@jhunix.UUCP (Ajay Choudhri) writes:

[stuff deleted]

>>2) What Controller card apart from the adaptec 4070 and 4000(a) work with
>>standard HD mechs(non scsi).IS there a WD, Xebec or possible OMTI substitution
>There is an OMTI ... I think it's 3527, not sure.  RLL.

yes - the omti 3527 is RLL and works fine other RLL drives, but for some 
unknown reason you get 5MB less than on a 4070 when you format any RLL 
drive. Adaptec 4070a drives are what I'm running on Super with a Miniscribe
RLL drive. It's been working for over a year now, no problems. 

...Some questions by the follow-up poster deleted.....

>Looks like the DMA bus is being munged, since it takes several reboots after
>the drives go bye-bye before I can autoboot again.
>
>(I'm using ICD 3.41 software)
>
>Mike

If you're using the new TOS 1.4 call ICD and get the latest booter as 3.41
doesn't operate properly with TOS 1.4. Recheck your cables, and try 
disconnecting your drives from the system when it crashes next time to see
if it's REALLY the drives causing the problem and not something else. Often
a controller can get confused with power spikes and system power has to be 
shut down completely. 

-----------------------------------------
Of possible interest to people with two ST's and a large hard drive, I have
been experimenting with ICD's host-adapter and have successfuly hooked up 
two STs to 1 host adapter system with two hard drives on it. I even ran
BBS express with both of them at the same time. I'm wondering if ICD is 
coming out with a dual-DMA bus access for us sysops with 2 STs? Anyone
out there heard of hooking two STs to a one-drive system?


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Mail to: Dave Tomesch - econadm5@watserv1.uw.edu.on.ca
Super BBS: 1-519-749-1206		"Never say Never!"