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From: "Scott MacFiggen" <smf@pdm.kla.com>
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Date: Mon, 20 Nov 1995 09:25:30 -0800
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        "questions-digest V1 #248" (Nov 18, 10:41am)
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Subject: Re: Disk De-Fragmenter...?
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>From Hellmuth Michaelis:
> >From the keyboard of Chuck Robey:
>
> > Terry, I have a friend who got relocated to work in Utah, for a company
> > that had as a major product a VMS disk defragmenter.  My friend was brought
> > in to help in doing one for Unix.  I know this to be true, I don't know
> > if it was FFS, but there must be SOME kinda truth behind this.
>
> Recently i saw an ad for a disk fragmenter for HPUX - it always looks like
> someone is trying to sell a noop product to uninformed people. For shure, one
> can make money with it but i doubt it will get the customer any benefit.

IRIX comes with a defragmenter (file system reorganizer): /usr/etc/fsr

DESCRIPTION
     fsr improves the organization of mounted file systems.  The
     reorganization algorithm operates on one file at a time, compacting or
     otherwise improving the layout of the file extents (contiguous blocks of
     file data) while simultaneously compacting the file system free space.

Is it just the Berkeley fast filesystem that doesn't need a defragger or
all Unix filesystems in general?

	-Scott