User indexes, including the entries in the index can be replicated.
User indexes are, by default, disabled for replication. To establish user indexes as eligible for replication, refer to Object replication controls.
Index entries that are added or removed from a replicated user index with the Add User Index Entry (QUSADDUI) or the Remove User Index Entry (QUSRMVUI) APIs will be added or removed on the target node by saving the object on the source node and restoring it to the target node.
Changes made to a user index, by using the Insert Independent Index Entry (INSINXEN) and Remove Independent Index Entry (RMVINXEN) MI instructions to add or remove entries to or from the index are not replicated.
Changing the Allow User Domain (QALWUSRDMN) system value may affect the domain of a user index when it is replicated.