TOMPLEX
A TOMPLEX is a collection of TOM PASs, each running on a different system, within a sysplex. A TOMPLEX can be a subset of the sysplex or can be as large as the sysplex. There can also be more than one TOMPLEX defined to a sysplex, but each TOMPLEX must have it's own registry data set.
To define multiple TOM PASs are part of a TOMPLEX, edit the BBPARM member MAMPLXxx for each TOM PAS and specify the same data set name of the registry on the REGISTRY_DSN parameter.
A TOM PAS can manage the status of objects on another system within the TOMPLEX as long as another TOM PAS has been started on that system. See How-TOM-communicates-with-other-TOM-PASs-in-a-TOMPLEX for more information.
For example, you are logged on to the TOM1 system on SYSA. The TOMPLEX includes SYSA, SYSB, and SYSC. Unless TOM PASs are available on systems SYSB and SYSC, TOM cannot determine the status of objects on these systems; the status of the objects on SYSB abd SYSC will remain as they were when the TOM PAS on their system was terminated. Also, objects cannot be moved between SYSA and SYSB or SYSC.
When a TOM PAS starts on system SYSB in the sysplex, and the REGISTRY_DSN parameter contains the same data set name as the TOM1 PAS for SYSA, the new TOM PAS will join the existing TOMPLEX. Objects on the new system can now be managed by TOM.