We have installed 4 SAP components(R/3,Xi,EP,BIW) on single OS (HP-UX)with Oracle. System perfectly working but little bit poor performance.
During installation we have given 8GB memory for all the compoennets , that means each instance 2GB ( 60:40 rule - 1.2GB for Application server ,0.8GB for DB)
All the instances we have installed same . Now we are planing to upgrade extended memory 8GB to 32GB (approx 4times of previous memory)
Now my concern is if i increase extended memory 8GB to 32GB , how it will effect to SAP applications.
Should i go and change instance profile parameters ?
Which profile parameters i should change ?
And what is the memory caluculation proportionality rate for my previous and upgrade memory?
I should change all the 4 components ?
Is there any problem if i change wrong parametrs ?
Please suggest .