Sorry for late reply. Here is document about loading to Oracle.

http://download.microsoft.com/download/D/2/0/D20E1C5F-72EA-4505-9F26-FEF9550EFD44/Optimized%20Bulk%20Loading%20of%20Data%20into%20Oracle.docx

I cann't find any link direct to persistent bulk load information but from the forum told that it's very expensive....

I use data access mode as "Table name or view name variable" which config in OLE DB Destination task.

I try to set the data access mode to "OpenRowset Using FastLoad...

There 're 6 million rows of data from mssql server loading to oracel 10g directly. The SSIS package running speed is around 6 - 7 hours before failed while loading...