Solution : https://service.sap.com/sap/support/notes/1272142 (SAP Service marketplace login required)
Key words : 
terms psa partition trace reason, data package -  psa table = technical, psa header table rstsods, assigned sap netweaver bi 7, write trace data, psa partition trace, sap netweaver bi 7, psa -  partno = partition, longer singly due, 'sap_rsadmin_maintain' program enter
Related Notes : 
       
| 1316752 | Consulting:PSA Partition Trace | 
| 1270629 | SAPBINews NW7.0 BI ABAP Support Package 21 | 
| 1260072 | SAPBINews NW7.11 BI ABAP SP02 | 
| 1260071 | SAPBINews NW 7.10 BI ABAP Support Package 08 | 
| 1227875 | SAPBINews NW7.01 BI ABAP Support Package 03 |