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Date:      Sat, 02 Mar 2002 17:43:52 -0600
From:      "John R. S. Mascio" <mascio@ryu.com>
To:        freebsd-questions@FreeBSD.ORG
Subject:   Re: defragment UFS
Message-ID:  <3C8163B8.6050804@ryu.com>
References:  <002301c1c1a6$b9e06f70$0801a8c0@ethel>

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David Smithson wrote:

> Hi all.  Is there a defragment utility for FreeBSD?  Is it even 
> necessary?  If not, why not?
>
>  
>
UNIX in general does not have a defrag utility.   The UNIX file systems 
don't worry about fragmentation as the only block you have any 
fragmentation on is the last block of a file.  Now, if you are worried 
about having your file blocks contiguous on the disk, it is not an issue 
with the file system nor does UNIX suffer from performance problems due 
to it.

There are others who could give very detailed and technical answers. 
 I'm rusty on the theory, but being a long time admin, it's never been a 
problem.

JRSM

-- 
      _  | John Raymond Stone Mascio 
  _|_|_) | mascio@ryu.com            
 (_|_|   | 214.725.7518
         | 972.240.5040
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