Deleting a Coupling Facility Connection to a Structure

You can delete one or more failed-persistent connections to a coupling facility structure with the IXLFORCE service. An active connection cannot be deleted. Once the last connection to a non-persistent structure has been deleted, the structure also is deleted. Deletion of a failed-persistent connection occurs as follows:

All connectors active at the time that the failed-persistent connection terminated must have provided an event exit response acknowledging the termination of the failed-persistent connector.
When multiple failed-persistent connections to a structure are to be deleted with one invocation of IXLFORCE, each failed-persistent connection is treated as a single IXLFORCE request.

On system with OW33615 installed or which are at OS/390® Release 9 or higher, when connectivity to a coupling facility is lost by all systems in the sysplex and a request to connect to a structure in the coupling facility is received, the system will automatically force all failed-persistent connectors to the inaccessible structure and the structure itself. This allows the system to allocate a new instance of the structure so the connector can successfully connect to it.

You cannot delete a connection to a structure while the rebuild process is in effect for the structure. However, you can delete a failed-persistent connection to a structure in the Duplex Established phase of user-managed or system-managed duplexing rebuild, as long as a request to switch or stop the duplexing rebuild is not in progress. The connector is forced from both instances of the structure.