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SubjectRe: tuning ext2 or ReiserFS to avoid fragmentation with large files?
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On Wed, Dec 05, 2001 at 03:17:17AM +0100, Rasmus Bøg Hansen wrote:
> On Tue, 4 Dec 2001, Erik Tews wrote:
>
> > If I remember right xfs has got a online-defragmentation utility. So
> > have a look at xfs.
> >
> > I think xfs works different from reiserfs and ext2 when writing files to
> > disk which helps avoiding fragmentation. This feature is called
> > allocation groups.
>
> I *might* be wrong, but isn't the allocation-group thing exactly what
> ext2/ext3 does?
>
> I don't know about reiserfs and fragmentation, however.

I am sure that xfs is doing that and reiserfs is not doing that.

But I am not sure about ext2 and ext3.

Reiserfs4 is going to be different, and it will have a
online-defragmentation utility.
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