Both system-managed processes (rebuild and duplexing rebuild) follow the same basic approach to establishing the new structure, that is, the system creates a new instance of the structure, connects users to the structure, and populates the new instance of the structure with data from the old structure. The sequence of events is:

1. One of the systems in the sysplex allocates a new instance of the structure.
2. Each system in the sysplex connects users from that system to the new instance of the structure.
3. One or more of the systems in the sysplex copies data from the old instance of the structure to the new instance.