from control station cd into /nasmcd/rootfs/slot_4/  (where slot_4 is my datamover 4). from there you will see a list of file systems or a list of vdm's. If your file system is mounted underneath a VDM ..cd into it and run "ls -rtl" ..you should see the date when that mountpoint was created.
 Anyone know what command to run in order to find out the original creation date of a file system?
File System Creation Date