1. A method of monitoring tape drives and media in a tape library, comprising: with a computer running an analytics module, receiving exchange data associated with an exchange in the tape library; with the analytics module, processing the exchange data to determine a gain type for the exchange; based on the gain type, assigning a health gain value to a tape drive and media involved in the exchange; with the analytics module, independently calculating a current suspicion level value for the tape drive and a current suspicion level for the media; and assigning a first health indicator to the media and a second health indicator to the tape drive.