Jonathan, VNX, Unity, and Isilon all support acting as DFS Leafs, however, none of them support DFSR (certainly someone from one of those product groups can correct me if that has changed).  It's my understanding that historically only NetApp has offered this particular feature [not plugging NetApp on an EMC forum, just talking reality].  The important question is why are you trying to use DFSR? Is to replicate from your Unity box to something else (heterogeneous replication)?  Or instead to have both sides be writeable at all times within a single global namespace?  There are other ways to skin that cat as the saying goes.  Small plug: If you're looking for heterogeneous NAS synchronization (1-way); say Windows file servers to Unity as an example, then my company's software, DobiMiner can certainly do that for you in a continuous and ongoing manner with md5 hashes of every single file.   If instead, it's just some tiny share like an HR handbook that you want available at all sites, then perhaps DFSR on Windows domain controllers might be a good approach.  DFSR can be nice, but these days there are usually better options.  ~Chris Klosterman Principal SE, Datadobi chris.klosterman[NAME].com
Wanting to set up DFS replication on my Unity 300 but I get the error "The member is running a down level operating system".  Does anyone have DFS-R setup with their Unity or have knowledge of it not being possible with the Unity's?
DFS-R Member is running a down level operating system