Re: ext4 features

[Claudio Martins]

On Saturday 01 July 2006 18:47, Thomas Glanzmann wrote:
> Hello,
>
> > Checksums are not very useful for themselves. They are useful when we
> > have other copy of data (think raid mirroring) so data can be
> > reconstructed from working copy.
>
> it would be possible to identify data corruption.
>
> >   What's wrong with DM snapshots?
>
> they're inefficient in matter of disk space consumption because they
> don't have a clue of the filesystems that are on top of them.
>

 May I recommend that you have a look at NILFS?

 http://nilfs.org/en/

 The design is built from the ground up to support an almost arbitrary number 
of snapshots, and also has other advantages. And it works already.

Regards

Cláudio

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