This operation allows the NMS to instruct the EMS to store PM history data in a file and send outside the interface by ftp or by anonymous ftp to the destination specified in the request. Performance monitoring data on multiple TPs of multiple MEs is transferred in one data file. The format of the file is contained in the attached supporting document PmFileFormat.

Measurement intervals and the given time frame are considered as half open intervals to the right, i.e. startTime <= t < endTime.
A particular historic measurement interval (of duration 15 min resp. 24 h) is defined to be covered by the specified time frame if there is a non empty intersection between the measurement interval and the given time frame, i.e. endTime[PM record] > startTime[request parameter] AND startTime[PM record] < endTime[request parameter] PM data are returned for all covered measurement intervals.
For records partly included in the time frame specified, PM data will be returned. In case a history bin has incomplete PM measurement data (for instance because PM data collection was disabled for some time period(s) within the bin's time span), the particular measurement period will be marked as incomplete.

This operation is asynchronous and is not required to wait until the PM data is extracted or until the FTP transfer is over before it returns. Notifications can be generated to inform the NMS of the progress of the transfer.

Operation Exceptions:
1. NOT_IMPLEMENTED - Raised when the EMS does not support this operation.
2. INTERNAL_ERROR - Raised in case of non-specific EMS internal failure.
3. INVALID_INPUT - Raised when any input parameter is syntactically incorrect.
4. NE_COMM_LOSS - Raised when communication to managed element is lost.
