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From: ron@brl-tgr.ARPA (Ron Natalie )
Newsgroups: net.wanted,net.micro
Subject: Re: Wanted: IOMEGA info, device drivers
Message-ID: <899@brl-tgr.ARPA>
Date: Thu, 22-Aug-85 17:33:50 EDT
Article-I.D.: brl-tgr.899
Posted: Thu Aug 22 17:33:50 1985
Date-Received: Sun, 25-Aug-85 02:29:11 EDT
References: <916@erix.UUCP>
Organization: Ballistic Research Lab
Lines: 48
Xref: watmath net.wanted:7033 net.micro:11652

> After a small market research here in Sweden we have found that
> the cheapest way to get additional secondary storage is to use 
> a 10Mb "Bernoullibox".

I would not suggest it.  First, you can get cheaper hard disk drives
these days.  The IOMEGA is SLOW!  Real SLOW!  Almost the same as floppies.
It was unbearable running a UNIX file system on it.  It would take forever
to read the entire disk.  Second, the media is not cheap, around 80 dollars
per cartridge.

> 
> What we want to know is
> 
>  Have anyone out there used a "Bernoullibox" with a UNIX like OS?
>   (We have seen the 5Mb box for MAC.)

Yes, I wrote a driver for XENIX for the INTEL 310 (a multibus box) using
a 80286.  The drive was a two 10mb drives on the single controller.

> 
>  We have heard that the IOMEGA has a SASI interface, is it possible to use it 
>  with the SCSI port. 
> 

No, it uses a SCSI interface.  It is however, only minimally compliant with
the SCSI standard.

>  What kind of controller did you use?
>   (We have the capacity to produce layout and cards 
>   if we can get a shematic diagram.) 

I used an EMULEX HA01 host adapter.  The thing was really preliminary.
Both the first and second manuals I got were terrible.  They sucked.
It took a long time to fix the boards to work despite the grossly wrong
switch settings, and then to get the driver to work with all the misinformation
in the manuals.  Fortunately, EMULEX customer support gave me a lot of good
help over the phone.

The Host Adapter is not my favorite design.  It is extremely minimalistic
and you have to do a lot in your driver software to make it work.
The problem is that there just aren't any decent MULTIBUS host adapters.
The only other one currently on the market (DTC) does not do parallel
multibus arbitration.
> 
>  Can anyone help us with a driver (source) for the Bernoullibox.?
>
No, the company I wrote it for has a vested interest in recovering the
money they gave me for writing the code.