Path: utzoo!attcan!uunet!wuarchive!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!cica!iuvax!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!m.cs.uiuc.edu!gillies
From: gillies@m.cs.uiuc.edu
Newsgroups: comp.sys.mac.misc
Subject: Re: What's wrong with the new Mac IIsi?
Message-ID: <70400084@m.cs.uiuc.edu>
Date: 20 Oct 90 18:45:00 GMT
References: <182528@<1990Oct17>
Lines: 26
Nf-ID: #R:<1990Oct17:182528:m.cs.uiuc.edu:70400084:000:1108
Nf-From: m.cs.uiuc.edu!gillies    Oct 20 13:45:00 1990


80 Meg is probably not large enough for the server's hard disk.  I
suggest 2-3 times as much (160-240 meg).  Here are some things to
think about ---

(1) How will backup be accomplished?  Have you considered copying data
from each classic to the IIsi?

(2) Today's software systems are 1Mb-2Mb per program.  Advanced
programs (hypercard, mathematica, smalltalk) already require 3, 5, or
10 Mb each.  Next-generation software systems will be 5Mb each.

(3) A single grey-scale scanned picture is roughly 200-300 Kb.  How
many of these pictures could be stored on your 80 Mb disk?  240-400,
total.

(4) If you ever want to run virtual memory on your II-series mac, then
you will need a "backing store" file to back up the main memory.  So
to run 16Mb of virtual memory on the IIsi, will require 16Mb of
dedicated hard disk space.

(5) Once you run low on disk space, the time spent in managing the
disk DOUBLES or TRIPLES, since you must delete something for
everything you create.  This is why you want to delay this occurence
as long as possible.  Do you want to have archives of the old
newsletters on-line?