🚀 go-pugleaf

	From: Robert Coquereaux <coquer@physik.uni-bielefeld.de>
	Subject: Ivory-II
	To: slug@Sunset.AI.SRI.COM
	Date: Sun, 18 Feb 1996 12:34:55 +0100 (MET)
	CC: dragon@portal.ca (Norman J. Jaffe)
	
	 Forwarded message:
	> 
	> To: slug@ai.sri.com
	> From: dragon@portal.ca (Norman J. Jaffe)
	> Subject: MacIvory II
	> 


   Of course you need a disk (about 300 Mega are necessary to install the Lisp
   Machine File System (LMFS) and the FEP). Personally I would suggest that
   you hook a hard disk of one giga containing all the sources, documentation
   and you own files. Of course, you can also keep the documentation and sources
   on CD rom (be careful about CD-readers, they do not all read Symbolics CD's)
   and be happy with a 300-500 Mega HD for the LMFS and FEP (the disk itself can
   have an invisible  partition A for the ivory side (or several) and a
   partition B for the mac side).
	
I had planned to mount a CD-ROM on a MacIvory with the Genera 8.3
CD-ROM so it could get the sources from there.  Unfortunately, it
appears that the 8.3 files are on that CD as tape files.  Ie, the
Ivory would read them like a tape rather than access them as a file
system.  I tried an earlier CD-ROM (8.0???) and the files were there
as a file system.  (I just bought some generic SCSI CD-ROM player and
had no problems reading the disk.  I also used two Ivory partitions
and one Mac partition.  One small Ivory partition that is my template
for other Ivory partitions and a giant partition for the file space.
Remember, although Mac files in a large partition have a minimum file
size you only create one Mac file in that partition which the FEPFS then
breaks up into FEP files (and the LMFS may take one or more of those
and parcels it out into the usual LMFS files you are used to).)


By the way, the reason I needed that MacIvory was I have had quite a
bit of problem with >10-year old SMD disk drives failing (even if they
were powered down for much of that time).  With the Ivory series
(rather than the 36xx series) I could go out and buy a 4GB SCSI disk for
<$1000 and set it up as a main Symbolics file server.


As for sharing network access between the Mac and the Ivory, you can
certainly do things like have Mac Appleshare and Ivory IP access
simultaneously over the same interface.


While we're on this subject, I have a MacIvory memory board that is
giving me errors.  I swapped in a different one and stopped getting
the memory error messages.  But I'd like to fix the first one.  Does
anyone know how to map memory addresses to chips on the board?
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