Re: Sharing HDs with Ramfast, HS SCSI, Mac?

[dempson@actrix.gen.nz (David Empson)]

In article <CnEvrt.6K8@eskimo.com>, Erik Kloeppel <lurch@eskimo.com> wrote:
> I can't help Chris - but I hve a related question.. I want to hook up two
> GS's to the same SCSI chain - and have them boot (separately) adn running at
> the same time.  I know this can't be done with the old rev C SCSI card, but
> I've been told that cards which support arbitration will let me do this.

You've been misinformed.

To do this would require a specially written operating system that was
able to deal with the hard drive being shared by another computer.  It
would probably work if the two computers were referring exclusively to
their own partitions, and never writing to the partitions used by the
other computer.  Otherwise, the directory structure would get corrupted
very quickly.

It would also work if you only used the drive from one computer at a
time (shutting down one computer and rebooting the other between accesses).

> So - does the HI Speed card support arbitration, or do I have to pop for
> a couple of RamFasts?

I thought that RamFasts don't support SCSI arbitration.  The HS SCSI
card supposedly does, but I've never tried it.
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand