Compare and Sync 2 shares across a WAN ?

Hi,

Just wondering if there are any internal Celerra tools that would help me compare filesystems ?

We have a very low latency and Wan acceleration.  The volume is 15Tb in both locations, mostly Images. 

I want to get a comparative report of the delta and also push a sync.  We use NDMP, rsync, Signiant and other tools already but wondering if there is anything built into a Celerra that may be better.

Thanks