Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!van-bc!rsoft!mindlink!a544
From: a544@mindlink.UUCP (Rick McCormack)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Disk optimization
Message-ID: <3262@mindlink.UUCP>
Date: 21 Sep 90 13:38:13 GMT
Organization: MIND LINK! - British Columbia, Canada
Lines: 19

From article by Robert Minich
<1990Sep21.021427.26233@d.cs.okstate.edu> referring to article by
macq@miguel.llnl.gov (Don MacQueen) re defragmenting files:
" I guess an "optimal" disk would put all the repeatedly accessed files
(the sys and apps) in the middle of a disk where the heads are in a good
position to either be on top of the next-requested data or only half a disk
away. Other things that are accessed like mad are the catalog files and
these should ideally be around the disk blocks they represent. (The only
file sys I know that does this is HPFS, which places catalog info on 32mb
boundaries.)

(end  of quote)

I seem to remember that the Apple II file system put its table of contents and
file info in the middle of the disk, and worked outward and inward from there
with data and application files.

How many people would buy an optimizer that gave them the ability to specify
lots of detail about where files went on a disk?  I'd bet not too many.