Well, IBM does have deduplication product offerings, but not free... For the most part, I see references to this product: IBM ProtecTIER Deduplication Services...
Looks like an appliance based solution, I think.
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Matt Olson
Sent: Friday, February 08, 2013 4:04 PM
Subject: IFS Deduplication
Does the IFS implemented in V7R1 have built in data de-duplication like files on a Windows Server 2012 file share can now have since data de-duplication is built into the new Windows Server 2012 OS?
If so, how can we activate it?