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Re: Why ext3 doesn't need defragmentation ?



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On 11/17/07 22:10, Sam wrote:
> Hi Kamaraju,
> 
> I am also not an expert in filesystems, however, I do know that the new
> native linux fs ext3 has what is called "journaling". Linux keeps track
> of where everything goes, so it doesnt get disorganized.

That's *not* the purpose nor a function of journaling.  To say so
indicates a deep misunderstanding of it's nature.

>                                                          Once in a while
> you could run fsck if your really concerned about it.
> 
> On 11/17/07, *Kamaraju Kusumanchi* <kamaraju@bluebottle.com
> <mailto:kamaraju@bluebottle.com>> wrote:
> 
>     On Sat, 17 Nov 2007 13:46:56 +0100, Bruno Costacurta wrote:
> 
>     > Hello,
>     > it appears that ext3 doesn't need a real defragmentation operation (by
>     > 'real' I mean a specific tool that need to be run sometimes
>     related to
>     > disk usage).
>     >
>     > Is it correct ?
>     > If so how it works ?
> 
>     I am not a file system expert by any means. Sometime back I read the
>     following link and found that it explains this issue very clearly in
>     layman terms.
> 
>     http://www.whylinuxisbetter.net/items/defragment/index.php
> 
> 
>     hth
>     raju



- --
Ron Johnson, Jr.
Jefferson LA  USA

%SYSTEM-F-FISH, my hovercraft is full of eels
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