Sysplex restrictions

Restrictions apply when you are using CICS® Transaction Gateway in a sysplex environment.

The CICS Transaction Gateway instance must run on the same logical partition (LPAR) as the CICS server to which it is sending requests if you are using EXCI connections with one of the following components:

The ECI resource adapter for global transactions
A client application for extended logical unit of work (LUW) requests

You can start a Gateway daemon in an HA group in any LPAR in the sysplex but you must ensure that the same resource recovery services (RRS) logging group is used in each LPAR.