How to know if the SGA is not created on paged memory in AIX?

Hi friends, I have installed Oracle 8i on AIX 4.3.3 and I need to know if the SGA is created on "real memory" , because it could be executing on paged memory. How can I be sure?

Anybody know some commands to check if an oracle segment is executing on virtual memory ? How can I know that segment is part of the SGA ?

Thank you for your help