Re: disk fragmentation

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So does this mean if the partition gets more than 70% full, I will get
performance hit?

Thanks.
Chen


On Mon, 26 Apr 2004, Ahsan Ali wrote:

> Yes, I believe that if the partitions have no more than 70% of their
> capacity utilized there wont be any performance issues.
>
> Please correct me if I am wrong because I havent done any benchmarks to
> verify this.
>
> Regards,
>
> Ahsan Ali
> ----- Original Message -----
> From: "Chuck Campbell" <campbell@xxxxxxxxxxxx>
> To: "Luca Ferrari" <fluca1978@xxxxxxxxxxx>
> Cc: <linux-admin@xxxxxxxxxxxxxxx>
> Sent: Monday, April 26, 2004 9:08 PM
> Subject: Re: disk fragmentation
>
>
> > On Mon, Apr 26, 2004 at 10:18:35AM +0200, Luca Ferrari wrote:
> > > Hi,
> > > I've got a simple question about disk use under windows and unix. While
> > > windows sometimes requires a de-fragmentation of the disk, it seems as
> Linux
> > > (and even Unix) does not. I believe this is due to a better
> defragmentation
> > > alghoritm, but I'm not sure. Is there a daemon which does this
> transparently
> > > or what?
> >
> > No,
> > Unix file systems, in general, are designed to have less performance
> issues
> > from fragmentation.  They aren't as susceptible inherently to
> fragmentation
> > problems.  As a result, there aren't any defrag tools around that I know
> of.
> >
> > You can always build your own.  A backup to tape will sequence all the
> files
> > contiguously on tape/disk, and a subsequent restore will put them back
> > that way.
> >
> > If you bother, do some benchmarks for a particular file i/o before and
> after
> > and I doubt you'll see much difference, unless your disk is very, very
> nearly
> > full.
> >
> > -chuck
> > -
> > : send the line "unsubscribe linux-admin" in
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> >
>
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