[CentOS] Filesystem that doesn't store duplicate data

[Ross S. W. Walker]

John R Pierce wrote:
> 
> Ross S. W. Walker wrote:
> > How about a FUSE file system (userland, ie NTFS 3G) that layers
> > on top of any file system that supports hard links, intercepts
> > the FS API and stores all files in a hidden directory and names
> > them after their MD5 hash and hard links to the file name in
> > the user directory stucture. When the # of links drops to 1
> > then the hash is removed, when new files are copied in if the
> > hash collides with an existing one the data is discarded and
> > only a hard link is made.
> >
> > Of course it will be a little more involved then this, but the
> > idea is to keep it really simple so it's less likely to break.
> >   
> 
> yeah, be REAL fun when an app random updates one of said files.

Yes, but as the writer of the FUSE file system you can make it
inaccessible to apps.

-Ross

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