To view segment activity details of any tablespace, follow these steps:
From the Administration menu, choose Storage, then select Information Lifecycle Management.
Enterprise Manager displays the Information Lifecycle Management page.
On the Information Lifecycle Management page, click the Show Additional button.
Enterprise Manager displays a dialog box that you can use to search for the segment activity details of any tablespace.
On the dialog box, enter the Tablespace Name and click the Search button.
Enterprise Manager displays the Segment Activity details for the tablespace.
Click the Edit Tablespace Policy button to display the Edit Tablespace page with the ADO tab selected. You can create a policy for the tablespace that allows it to be compressed or moved.