There are some time when SAP Needs Diagtool and TSHW trace for analysis of Portal Issue .
Based on the SAP KBAs 1916332 and 1921472 we can provide traces .
These SAP Notes Provide detail Information and steps which we follow we will be able to provide .
Open the Diagtool using the following URL: http://<host>:<port>/diagtool/tc
In case it is not deployed follow the steps in the SAP note 1045019
We can follow subsequent Step as mentioned in SAP Note 1916332 and 1921472 .
This process helpes us to fix Portal Issue .So I created Short Article .
Regards ,
Abhishek