IBM TotalStorage Expert, formerly IBM Storwatch Expert, is a software product made up of two components: Enterprise Storage Server (ESS) Expert and Enterprise Tape Library (ETL) Expert.
IBM TotalStorage Expert is used for preparing reports and graphical charts from the data collected. Reports and charts can be used in managing assets, capacity, and performance for your ESSs and ETLs
IBM TotalStorage Expert has been superseded by the IBM TotalStorage Productivity Center (TPC)
References
IBM TotalStorage Expert Wikipedia(Text) CC BY-SA