Example of Draining a CF

The status of the CF (NORMAL) and the authorization type of the operator (ALL) are displayed on the right of the INGCF DRAIN panel. The main part of the panel consists of a list of the structures allocated in CF1 and their conditions. The conditions are classified by color and an asterisk. The asterisk signifies that a structure cannot be rebuilt.

The only action that is enabled is REBUILD with PF10. Pressing PF10 leads to a confirmation panel. After PF10 has been pressed, the structures are in the process of being rebuilt.

After the rebuild has been completed, a panel is displayed that shows that one structure could not be rebuilt because no alternate CF is specified in its preference list. The REBUILD status is no longer available. Instead, the FORCE action (F5) is offered because the structure that could not be rebuilt has a condition that allows forcing the deallocation of the structure. Pressing F5 displays a confirmation panel similar to that for REBUILD.

Pressing PF10 on the confirmation panel and refreshing the command dialog after the action has been completed results in a panel that shows that no more structures are allocated in the coupling facility, so the coupling facility can be released from the connections with the systems of the sysplex. Consequently, INGCF DRAIN enables the DRAIN action (F4). After completion of that action, the status of the coupling facility changes to DRAINED. Because the coupling facility is no longer connected to any system, it can be inactivated. After pressing F11 the status of the coupling facility changes to INACTIVE.