You can set policy for moving external files. You must define Database Dynamic Storage Tiering parameters before you can set movement policies for external files.
To set policy for moving external files
Access the Database Dynamic Storage Tiering External Files Policy wizard.
See “To access the tiered storage policy wizards in the Java GUI”.
For each storage class, select the number of days the file is not accessed before it will be moved to that storage class. You can leave the Days field blank if you do not want to set policy for a storage class.