A change in the active CFRM policy might be required when an installation uses a rebuild process to move a structure to another coupling facility or to create a duplexed structure in another coupling facility. The active CFRM policy defines the coupling facility preference list and the structure exclusion list of the structure that is to be rebuilt or duplexed. The CFRM policy also specifies for each structure whether duplexing rebuild is to be manually initiated or is able to be automatically initiated by MVS™.