In this Learning Services QuickStart video, we review  the InterSystems IRIS Data Platform™ extremely efficient data model known as globals. Individually, a global is a persistent multidimensional array. Data added to globals is immediately stored and available to multiple processes, not just the process that stored it.
Note that globals are not just another storage model. In fact, they are so powerful and flexible that they are actually at the core of all InterSystems models, giving you freedom from database remodels.

Visit the Globals QuickStart on the InterSystems learning site for more.