RADIUS database growing up

Hi, I have two radius server since three years ago. They are my two production AAA servers and can authenticate until 300.000 accounts. So my RADIUS database (PostgreSQL) grew up enough and I realize that my SQL queries slow down. I know that I have four table with almost 500.000 registers each one. Any suggestion for improving the throughput and accelerating the queries? Thanks, Santiago Sigue los principales acontecimientos deportivos en directo. MSN Motor _________________________________________________________________ Tecnología, moda, motor, viajes,…suscríbete a nuestros boletines para estar siempre a la última http://newsletters.msn.com/hm/maintenanceeses.asp?L=ES&C=ES&P=WCMaintenance&...