Your answer is also correct in my opinion Reagan. This is the method we used on the DEV and QA systems, by using a modified SAPInst program we downloaded from SAP. The modification is just so SAPinst does not stop when it realizes it is running on a Windows 2008 R2 box. The original version of SAPinst will stop the upgrade. But, the new SAPinst does not seem to support MSCS on Windows 2008 R2. SAPInst cannot create the shares on a Windows 2008 R2 box, as it is done differently from Windows 2003 and therefor keeps failing. This is with the assumption that you cannot convert a non MSCS system to cluster once the installation is complete. That is prompted me to ask this question.
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