Managing objects across sysplexes with layering
For example, almost all z/OS systems need to have JES, VTAM, TSO, and other objects defined on each system in each sysplex. In addition, each z/OS system can have multiple CICS and IBM WebSphere objects defined. If you have 30 z/OS systems spread among 12 sysplexes, defining and managing objects for all of these systems is a big task. To change the definition of the VTAM object, you can make the change in the layer object and easily copy or dynamically propagate the updates to all other objects, on multiple sysplexes.