In my 2008 CMG paper "Exception based Modeling and Forecasting" I have mentioned some approach that my colleague, coauthor and friend Ray W. implemented to provide proactive Database Space Capacity planning:
By the way, my first and best American manager is mentioned there - Kevin M. As stated in the paper he has actually gave me the idea of the SEDS and he was the co-author of my 1st SEDS related CMG'01 paper - Exception Detection System, Based on the Statistical Process Control Concept