Solution : https://service.sap.com/sap/support/notes/1283141 (SAP Service marketplace login required)
Key words : 
--------------------< i030669 changed mar/16/06 > ------------------------------------------< i030669 dec/22/05 >----------------------------checking java vm setting, open file \usr\sap\ <sid>\jcxx\j2ee\configtool\configtool, databaseoracle usage type application server                     psap< sid>db, windowsor  /usr/sap/<sid>/jcxx/j2ee/configtool/configtool, open monitoring segment <nr> rtc = 245last reported error, 10000 mb usage type development infrastructure                     psap< sid>db, ---------------< updated i021802 jul/23/09 >-----------------------------------------------< d043396 apr/10/09 >------------------------------installing diagnostics agentthis, 1500 mb usage type business intelligence                     psap< sid>db, 10000 mb usage type enterprise portal                     psap< sid>db, standalone real-time collaboration application sharing server
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