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From: whit@milton.u.washington.edu (John Whitmore)
Newsgroups: comp.sys.mac.hardware
Subject: Re: One HD, two Macs
Message-ID: <14182@milton.u.washington.edu>
Date: 11 Jan 91 06:04:08 GMT
References: <16073@burdvax.PRC.Unisys.COM> <130402@jake.encore.com>
Organization: University of Washington, Seattle
Lines: 29

In article <130402@jake.encore.com> wcarroll@encore.com (Mr. New Dad) writes:
>From dave@PRC.Unisys.COM (David Lee Matuszek):

>> Does anybody have a reasonable way to share one hard drive between
>> two Macs?  Or is this just not technically feasible?

>Is it possible to do this?

>		 ------
>		 | HD |
>		 ------
>		   |
>	   ----------------- <- scsi bus
>	   |		   |
>	-------		-------
>	| Mac |		| Mac |
>	-------		-------

	This has the problem that two devices on the bus have the
same SCSI address.  The two Macintoshes are both device #7;
short of rewriting ALL the driver software (including the bootup
code in the ROM), it is probably impossible to make this scheme work.
	The simplest workable solution would use a SCSI bridge
(i.e. a special-purpose SCSI box with two separate SCSI bus ports).
I don't know of any such devices available at reasonable cost.
I recall that Traveling Software was considering building one
some years ago, but haven't heard if their project was ever marketed.

	John Whitmore