Subject: Re: Zip or hard disk, Ramfast --> HS SCSI
Path: lobby!newstf02.news.aol.com!audrey05.news.aol.com!not-for-mail
From: supertimer@aol.com (Supertimer)
Newsgroups: comp.sys.apple2
Lines: 44
NNTP-Posting-Host: ladder06.news.aol.com
X-Admin: news@aol.com
Date: 04 Nov 1999 04:52:37 GMT
References: <pb14-031119991234047045@mac180.cc.le.ac.uk>
Organization: AOL http://www.aol.com
Message-ID: <19991103235237.01660.00000863@ng-bh1.aol.com>



Phil Beesley <pb14@le.ac.uk> wrote:

>Louis Cornelio's recent query reminded me. I have two IIgs, one with an
>Apple HS SCSI card and the other with an early Ramfast card (a version
>2 ROM, ISTR). I haven't tried swapping disks between the two systems
>but I may need to shortly. 
>
>1. My understanding is that the Ramfast does not store an Apple
>partition map on the disk. Is there an easy way to mount such a disk on
>an HS SCSI?

The RamFAST DOES store an Apple partition map on
disk.  RamFAST and Apple HS cards use the same
partition scheme which is the same scheme that Macs
use.  It is the CMS card that uses a different scheme.

>2. The reverse question -- does the Ramfast object particularly to the
>Apple partition map.

Nope.

>3. I created a couple of ProDOS partitions on a Zip disk using the
>Ramfast utilities and can successfully boot from one of the partitions.
>I assume that the problems will be the same as for a hard disk if I try
>to access the Zip cartridge on an HS SCSI IIgs? I'm not concerned about
>trying to boot the HS SCSI system from the Zip.

You can use the Zip on the HS card as long as you
have a hard disk drive on the chain that supplies
termination power.  This is the power to drive the
terminators.  If you have a hard disk on the HS GS
and it is working, then it is suppling term power.
Just connect the Zip to this hard drive.

>Just for the record: if things look messy, I can quickly knock up a
>file transfer solution using LocalTalk but I would like to know the
>easiest way to use Zip cartridges with ProDOS partitions on the two
>systems.

Zip disks are completely compatible between the two
SCSI cards.  You can boot from either.  However,
only the RamFAST can boot from a bootable partition
OTHER than the first partition on the Zip disk.  The
Apple card can only boot from the first partition.