NWPA is a producer of this event. This is a non-consumable event that notifies NLM applications that an adapter and all Media Manager objects associated with it are being unloaded. The REVERSE_ORDER_BIT must be set in the eventFlags field when registering to consume this event. Potentially, many of these are sent for a single unload, one for every Media Manager object affected. The shortEventData field of the EventBlockStruct structure contains the following information:
LONG subsystemID (1=ODI, 2=Storage)
LONG Media_Manager_object_ID