Providing greater amounts of main storage in the *BASE main storage pool on the source system might improve remote journal performance. Improvements are most likely in environments with one or more asynchronously maintained remote journals.
Providing greater amounts of main storage in the *BASE main storage pool on the target system will improve remote journal performance. This is especially true in a remote journal network with a high volume of activity. The additional storage will keep the number of page faults to a minimum, and reduce the impacts to the target system.