Running SMS in a parallel sysplex environment

An SMS complex consists of systems or system groups that share a common configuration. A Parallel Sysplex® is made up of systems that share a cross-system coupling facility (XCF); you can run multiple SMS complexes within a Parallel Sysplex.

Restrictions:

An SMS complex should not span sysplexes. All of the volumes in the SMS complex should be in the same Parallel Sysplex. The cross-system sharing functions, such as VSAM record-level sharing (RLS), partitioned data set extended (PDSE) sharing, z/OS® Security Server RACF® security and global shared resources (GRS) serialization, work only within the scope of a single Parallel Sysplex. These functions are not supported when the SMS complex extends beyond the Parallel Sysplex in which they are carried out.
Do not set up multiple SMS complexes sharing the same DASD. This requires extra work to maintain the duplicate SMS configurations and can also create problems such as running out of disk space because one configuration cannot know about changes made to the other configuration, such as data set allocations and deletions, and storage group and volume status changes.
In a JES3 environment, system group name is not supported due to the fact that the system features and resources that are used to determine on which eligible system a job will be run are only applicable to each system, not to a system group.