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From: joe@vixen.uucp (Joe Hitchens)
Newsgroups: comp.sys.amiga
Subject: Re: X11, Ethernet, Shared Hard Disks
Message-ID: <297@vixen.uucp>
Date: 9 Sep 89 11:36:42 GMT
References: <22987@louie.udel.EDU> <848@boing.UUCP> <277@nap1.cds.wpafb.af.mil> <3518@blake.acs.washington.edu>
Reply-To: joe@vixen.UUCP (Joe Hitchens)
Organization: Sleepless Software
Lines: 46

> >  C-Ltd *claims* that their Kronos SCSI controller will allow multiple 
> >Amigas to share a harddrive.  Each computer can have its own partition
> >with its very own startup-sequence, and I believe there can be shared 
> >partitions too.  Has anyone out there in netland actually tried this?
> >It sounds like a pretty good controller (Well, at least according to 
> >C-Ltd :-)

> be general interest:  Yes, the shared harddrive stuff is doable with 
> the CLtd. controllers.  There are drawbacks, but they are survivable.

I have an OLDER CLtd. controller (came with SCSIDos 2).
I remember my docs went on at length about sharing harddrives.  Will
my controller do this (OLD one remember) if I only want a shared READ
partition?

What I want to do is this ... I have an A1000 and an A2000.  The 2000
is just a stock 2000 with 1Meg and the fatter agnus, no SCSI controller.
The 1000 has the older CLtd. controller.  I have one ST277N drive on
the 1000.  I want to get another controller for the 2000 (possibly a
GVP SCSI plus 2M ram) and put it on the SCSI bus with the 1000.
THEN, I want to divide the ST277N into 3 partitions.  One read/write for
the 1000, one read/write for the 2000, and the other read-ONLY for both.
That way, both computers have their own work space that the other is
oblivious to, plus they share a common SYS: area where all the c: devs:
etc is.  When I want to alter the SYS: partition, I will just make
sure that I do it quick, and then do a diskchange on both machines
to make sure they have the right info.

My main concerns are these:
  * Would I have to have the newer CLtd. controller to do this?
  * Would the two initiators on the bus conflict in any way to mess up
    communications on the bus assuming that the device ID's for all
    controllers and drives are unique?
  * Would the configuration work (assuming it would work with two CLtd.
    controllers) with a GVP as one of the controllers?
  * Am I out of my mind?

Thanks for any light anyone can shed on this scheme.

j.h.

-- 
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Joe Hitchens -- Artist, Sculptor, Animator of Sculpture, Iconographer Adept
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