Loss of Connectivity During the Stop of System-Managed Processing

During the stop of a system-managed process:

When a connector loses connectivity to the old structure while a system-managed rebuild is being stopped, or during a duplexing rebuild stop to use the secondary structure, the loss of connectivity is reported to each connector after the Structure Available event. The affected connectors must disconnect in response to the LOSSCONN event.
When a connector loses connectivity to the new structure while a system-managed rebuild is being stopped, or during a duplexing rebuild stop to use the primary structure, the loss of connectivity is not reported to the connector because all connectors are reverting to the old structure. Deferred requests will be driven to the primary structure after the stop completes.