[52574] in Cypherpunks
Re: protection on IoMega ZIP drives
daemon@ATHENA.MIT.EDU (Alan Olsen)
Sun Mar 24 16:02:59 1996
Date: Sun, 24 Mar 1996 12:55:53 -0800
To: "Robert A. Rosenberg" <hal9001@panix.com>
From: Alan Olsen <alano@teleport.com>
Cc: "Deranged Mutant" <WlkngOwl@unix.asb.com>,
Ed Carp <erc@dal1820.computek.net>,
"Joseph L. Moll" <jmoll@acquion.com>, cypherpunks@toad.com
At 02:47 AM 3/24/96 -0500, Robert A. Rosenberg wrote:
>At 2:45 3/23/96, Alan Olsen wrote:
>
>>The big problem is with the zip drivers. There is some sort of
>>incompatibility between SFS and the zip drivers.
[snip]
>I can state that with a Zip Disk formatted for Macintosh use (and the drive
>plugged into a Macintosh), the drive and disk are seen by the Macintosh as
>a NORMAL SCSI HD and eligible for use as a Boot Drive (ie: There is a Mac
>Driver on the Disk in a SCSI Driver Partition). I've Booted from a ZIP Disk
>so this is actual not just theoretical <g>. I'd assume that if a Wintel
>Machine had the Microcode to be able to boot off an external SCSI Drive
>(something I do not know is normal for Wintel machines as it is normal for
>Macintosh ones) the same situation would exist for Wintel Zip Formatted
>Disks. All NORMAL SCSI HDs (or Cartridges) have their driver in a Driver
>Partition so the HD/Cartridge can be read.
The SCSI Zip drives do act as normal SCSI drives (though they have a limited
number of SCSI ids available. (5 & 6 if I remember correctly.) Later drives
may have this changed.)
The problems i am encountering are due to the _parellel_ version of the Zip
drive. (I bought it because I needed to be able to visit customer sites and
not all of them have SCSI.) The drivers fake a scsi port. (Some laptops
use a similar driver to attach hard drives to non-scsi systems.)
Maybe I will just get a Jaz drive and not worry about it...
---
Alan Olsen -- alano@teleport.com -- Contract Web Design & Instruction
`finger -l alano@teleport.com` for PGP 2.6.2 key
http://www.teleport.com/~alano/
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