1. A method of generating a configuration advisory tool constructed and arranged to provide optimized configurations for data storage systems located at remote sites on a network in response to configuration queries from the data storage systems, the method comprising: receiving current storage system data from a particular data storage system located at a particular remote site on the network; storing the current storage system data in a database that stores previous storage system data that had been received from previous data storage systems located at the remote sites on the network prior to receiving the current storage system data; and generating, on a host computer, a predictive model configured to output particular values of configuration management parameters to the remote site on the network in response to the host computer receiving values of input parameters that are indicative of a configuration query, the predicative predictive model including model parameters based on the current storage system data and the previous storage system data, the particular values of the configuration parameters being indicative of an optimal configuration of the data storage system located at the remote site on the network.