The information in this topic adds to the basic guidelines that are presented in Specifying XRC journal, control, and state data sets. See your IBM® marketing representative for the latest remote copy performance and configuration information and recommendations for your specific environment.
Ideally, for the best XRC system performance and recoverability, the recovery system would be equivalent to the primary system. In reality, you may only need to back up a subset of your primary system as a result of a disaster. The following sections outline additional ways to optimize overall XRC system performance.