This event holds details of PM historical PM data file being transferred including transfer status, percent complete and failure reason.
The number of events indicating IN_PROGRESS that will be transferred is EMS dependent, however, at least one event indicating COMPLETED with percentComplete=100, or FAILED with failureReason filled in is mandatory.

MTOSI Specific Documentation
This class is applicable to MTOSI. The specific operations and relationships that apply to MTOSI are listed in SD2-11. 
For MTOSI, references to "NMS" can be interpreted as "Requesting OS" and references to "EMS" can be interpreted as "Target OS", i.e., the OS that fulfills requests from another OS. 
The statements concerning Object Lifecycle, i.e., whether the object can be created by the NMS or EMS, are not particularly meaningful for MTOSI, since MTOSI does not define management systems with fixed roles such as the NMS and EMS entities in MTNM.

Object Lifecycle: Created and deleted by the EMS

Object Creation Notification Issued? No
Object Deletion Notification Issued? No
