Disk usage and ZFS deduplication

[Šimun Mikecin]

2011/6/14 Per von Zweigbergk <pvz at itassistans.se>

> >> If you use "du" to determine disk size for a deduplication, what would
> be the result? Which file would the common data be accounted to? Or would it
> be accounted to both files somehow, in part or in full?
> >
> > Logical answer would be that both files should be showing thier
> > resulting size regardless of how ZFS processes them. Being deduped does
> > not mean representing files to the user any different.
>
> That would be the file size, yes, as opposed to the disk usage.


What about hard linked files? They are similar to dedup in this regard.