Ernesto Quiñones wrote:
The "architecture"  that I need to install is:


1 AIX  ----------> 3 AIX    --------------> 1
load                   servers                     Storage
balancer            with PostgreSQL      (SAN)


the 3 AIX PostgreSQL are PPC RS64-III with 1gb RAM

the concurrence is near to 250 - 300 connections (the total user is
bigger than 32,000)

some idea/advice?

good luck. replace those weak PPC boxes with a single proper Power6 or Power7 system and run circles around them.






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