Hi ,
Your Export/Import Buffer seems to be low and could be increased by another 50% . You may increase your program buffer too ( if its development )
Please check the following note
1971776 - High Usage of Paging Space on AIX
902952 - AIX: Paging even though sufficient free memory
Also bring the following note to the AIX teams notice
1972803 - SAP on AIX: Recommendations
Thanks ,
Manu