Generations for the zGeneration

Ever wonder what a Generation Data Group (GDG) is and how is it used? What is a generation data set (GDS)? How are the generations chosen? What is GDS roll off, and how and why do we reclaim GDSs? Can I use PDS with GDGs? What is GDG Extended and how do I enable it? These questions and many more will be answered as we explore generation data groups.-Stephen Branch-IBM Corporation