[huskerlug] Fragmentation in FAT/FAT32/NTFS , Ext2/3, and Mac hfs/hfs+,etc.

The major reason that there are software system
failures in Microsoft and Macintosh Operating systems,
giving a BSOD or dropping to the BSD shell, is the
filesystems.

If you run Microsoft filesystems, you WILL experience
fragmentation.

If you run Mac OS X and use HFS or HFS+, you WILL
experience the BSD shell 'black screen'!

This applies to USB devices, also!

Why the failures?  I have read that the
GNU/Linux,*BSD, and Unix filesystems write from the
center of the drive space, and plan the layout.

  All the systems that experience failures seem to
write from the beginning of the drive, have no
in-process planning, dumping data wherever there is
some 'open' space.

I wondered and pondered that the Journalized
filesystems helped to keep it all clean, also!

Source:  
Journalized Filesystems  -
http://www.altlinux.com/?module=seminar&part=196

Fragmentation and testing -
http://trends.newsforge.com/trends/06/07/21/192241.shtml?tid=138&tid=18

"The first filesystem was XFS, which showed clear
color lines with small amounts of fragmentation
visible as the files moved around the disk in the
highly accelerated animation. The other filesystem he
showed was NTFS, which resembled static as you might
see on a television that is not receiving signal, as
the filesystem allocated blocks wherever it could find
room without much apparent planning."


 

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