2.2.1.3.4 VDS_VOLUME_NOTIFICATION

The VDS_VOLUME_NOTIFICATION structure provides information about a volume change notification.

 typedef struct _VDS_VOLUME_NOTIFICATION {
   unsigned long ulEvent;
   VDS_OBJECT_ID volumeId;
   VDS_OBJECT_ID plexId;
   unsigned long ulPercentCompleted;
 } VDS_VOLUME_NOTIFICATION;

ulEvent: Determines the volume event for which an application will be notified; it MUST be one of the following values.

Value	Meaning
VDS_NF_VOLUME_ARRIVE 0x00000004	A new volume is visible to the operating system.
VDS_NF_VOLUME_DEPART 0x00000005	An existing volume is no longer visible to the operating system.
VDS_NF_VOLUME_MODIFY 0x00000006	The volume was modified.
VDS_NF_VOLUME_REBUILDING_PROGRESS 0x00000007	A fault tolerant volume is being regenerated or resynchronized.

volumeId: The VDS object ID of the volume object to which the notification refers.

plexId: The VDS object ID of a volume plex object to which the notification refers, if any. VDS applies this identifier during the rebuild operation, which can execute on multiple plexes at different rates.

ulPercentCompleted: The percentage of completion for the operation. Valid values range from 0-100.