DFS 11.0 - Image cache
Inspect cached images located on the file system. Input an assetId and press search. It will now look though the file system and list all cached images for that id. You have to option to clear a specific image cached or clear all images for the assetId.
You also have the option to send out an event to all CD servers, telling them to clear their image caches for a specific assetId.
To invoke the event on the CD Server, you must locate the following file App_Config → Include → damforsitecore → DFS.Client.config. Open it and find the tag events. Check that the event name publish:dfsClearCache:remote is not commented out.