Looking for best solution to find growing folders

We have a number of filers we monitor, and every so often someone will decide to dump a HUGE amount of data on them.  Space runs out, and then we get to track down where the culprit is.

 

My question, is- has anyone found a decent solution for this within Data Insight?   I can see for example, users reading/writing, but finding the folder that blew up the storage allocation would be really nice to find.  While the trend/utilization reports can show it from a high level, that only shows the filer not the folder that suddenly grew 20gb in an hour.