Figure 1 illustrates the sequence of events during a system-managed rebuild.

The following list summarizes that process:

1. Rebuilding for a structure is initiated through SETXCF START,REBUILD or IXLREBLD REQUEST=START.
2. System reports Structure Temporarily Unavailable event to all active connector's event exits.
3. Connector responds to the STRTEMPUNAVAIL event with either IXLEERSP or IXLYEEPL.
4. When all responses are received, the system quiesces activity to the structure for access requests.

   Requests that are already in progress are completed. New requests are queued.

5. When all connectors are quiesced, the system allocates a new structure instance.
6. The system connects all active users of the old structure to the new structure.
7. One system attaches all failed-persistent users to the new structure.
8. The system copies structure objects from the old structure to the new structure.
9. The system reports the Structure State Change Notification event to all connectors and deallocates the old structure instance.
10. The system unquiesces access to the structure and drives all queued requests against the new structure.
11. The system delivers the Structure Available event to all connectors.
12. The system delivers the Alter Begin and Alter End events to all connectors.