If the environment in which system logger is executing consists of more than one sysplex in a GRS complex, with like-named logstreams defined on multiple sysplexes, the following requirements must be met:

• The GRS Ring complex contains at most one multisystem sysplex.
• One of the following must be true:
  • Each like-named logstream in the GRS complex must have a unique EHLQ/HLQ.
  • The installation must ensure the separation of system logger logstream resources (separate catalogs and DASD). Further, the logstream offload data set naming convention must be included in the inclusion list as discussed in z/OS MVS Planning: Global Resource Serialization.