I'm trying to enable Access Based Enumeration on a DD6300 with OS 6.0 using emcabe.exe 2.0 (from CifsTools_220.127.116.11).
The tool seems to work, it has enabled ABE succesfully on the share, with /G it reports ABE enabled, I also rebooted the DD but I still see all folders, included the ones I don't have permissions...
I found some documents for you. It is not a Data Domain issue I believe:
In case if this is of any help: