Iseries Settings for JAVA  (Heap sizes)

I am new to SAP, not to Iseries. The notes 717376 and 990892 give me insight as to what needs chging but not the how to change it.
I want to know if I can set the heap sizes directly in the IFS and How.  Our consultants are not ISeries strong...  I can not get the Config tool to work, and Visual Admin is too
foreign for me to find where the sizing is.
PI takes way to long to start up and my guess is we need initial heapsize to be set and max increased.
thank you

Hi
I am not sure about iSeries but the configuration of parameters in SAP Java stack always affect the Java system performance. The few steps to change parameters are as follows:
Main point is you have to use the configtool only. You cannot use Visual Administrator to change the memory parameters.
Open the ConfigTool ( usr/sap/<SID>/DVEBMGS<sys nr>/j2ee/configtool file would be configtool.sh)
Then at the left hand pane you would get the Server and Instances (local and global : these are used for the cluster environment; local means that you are logged into the current instance....global means that you want to change the settings for whole of the Java stack)
If you click on them like Instance_<instance number>; right hand side you would get all the parameters where you can change these settings.
Follow the notes instructions.
It would ask for the restart of the SAP server
check this link
http://www-03.ibm.com/systems/i/advantages/sapj2ee/tuning.html

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