Datafile I/O Tab
Use the Datafile I/O tab (visible for Workload or I/O resource specification) to display a lower pane listing of the data files, in the current dimension drilldown context, on which the most I/O resource-demanding data activities occurred.
For systems based on EMC storage arrays, right-click on a file of interest to initiate the Storage Analysis for EMC physical layout and I/O analysis for the corresponding data file.