On 22.1.2010, at 23.39, Frank Cusack wrote:

> On January 22, 2010 11:21:09 PM +0200 Timo Sirainen <t...@iki.fi> wrote:
>>> Or will there be a global index?
>> 
>> Yes. That's what dbox SIS is about. You have a global repository of
>> (large) MIME parts, indexed by their SHA1 sum (or something).
> 
> In the case of zfs then, the filesystem may as well do the dedup'ing.

Or "dbox may as well do the deduping"? :) I guess it comes down to whose 
algorithm is fastest. I suppose they're more or less the same, if it's possible 
to tell zfs to dedup files only in /mail/attachments/ directory (I guess you 
can create a separate filesystem for that).

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