You configure retention folders using the Administration Console. The required steps are as follows:
Create a suitable folder policy to use as the default folder policy for the retention folders.
Create a Retention Folder policy to define the hierarchy of folders to be created on the FSA target and the folder policy to use on each folder.
Add the FSA target on which you want the retention folders created, assign the Retention Folder policy, and specify where archive points are to be created. You can specify that the retention folder hierarchy is added to the root of the FSA target, or to each subfolder.
The folders are created on the file server on the next Normal mode archiving run. To test the effect of an assigned retention folder policy you can perform an archiving run in Report mode.
You can also assign policies to folders using a command line interface.
More Information
Creating and managing retention folders
Assigning a Retention Folder policy using the Command Line Interface (CLI)