Apple Final Cut Server - Manual (Page 61)

Chapter 5 Using Device Setup Assistant 61
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About the Default Devices
When you installed Final Cut Server, you entered a production media location. By default,
Final Cut Server creates three devices at that location: Library, Watchers, and Media.
The default Library, Watchers, and Media devices are actually just subfolders
Final Cut Server created in the production media location. Users can use these devices
as is; for example, they can add assets and productions to these devices.
The Watchers device is intended to be used for the automations created by the
installer. For example, you could add media to this folder or one of its subfolders and
an automation would notice the media and copy it to a different device, adding it to
the Final Cut Server catalog and transcoding it if needed. The default automations are
all configured to watch the folders within this device.