Logic circuits and operations respond to received various control signals, including (1) data exchange commands directing the drive to read and/or write data to a media item mounted by the drive, and (2) robotic device management commands. The logic responds to incoming data exchange commands by reading and/or writing to the loaded media item. The processor responds to at least some robotic device management signals by forwarding them to a robotic media transport device. The processor withholds the data exchange commands from the robotic device, since they are only pertinent to operations of the drive itself. The robotic device may be configured to restrict host access to library components according to predefined logical partitions.