[Ti] How do I remove OS9 from Panther?

[Chris Olson]

On Dec 3, 2003, at 6:02 PM, Loren Schooley wrote:

> When you use disk utility to format normally, it leaves what you might 
> call a ~table of contents~, or cache, of every fragment of the disk 
> that ever had a file. If you leave it that way when you install, well, 
> every time your CPU looks for data, it has to read all the historical 
> contents of the old systems to find out it isn't there anymore.

The file system drivers in the Mach kernel use a high degree of volume 
fragmentation by default to combat file fragmentation.  The reasons you 
cite date back to OS 9 filesystem drivers, and do not apply to OS X.  
Even if you create and delete large amounts of files in an attempt to 
fragment the file system, the disk read/write time will be only 
minimally effected, and will recover from the fragmentation quite 
quickly as new data overwrites blocks where old data is stored.  Since 
the HFS+ journaling filesystem drivers only journal the disk's 
metadata, there's very minimal, if any at all, slowdown in system 
performance with OS X's journaled filesystem.
--
Chris