2012-05-03 08:50 AM
You can check out "File Storage Resource Manager(FSRM)" which I think fits this requirement.
DFM in conjuction with NetApp Host Agent residing on Windows, Linux or Solaris workstations/servers monitors the directories you specified and generates report that provides info like file space usage, last access, type of files(.mp3, .jpeg,etc).
2012-05-03 09:03 AM
Came to know that FSRM is not longer for sale and goes end of support in August 2012:
You might have to look out for other solution for this requirement.