How would you upgrade SAP kernel 6.20 to 6.40 in an MSCS Environment on Windows 2003?
Proceed as follows: Stop the SAP R/3 resource in the cluster. Leave the SAP disk online. Replace the kernel in the executable directory. Don’t forget the extra executables in the c:windowssapcluster or c:winntsapcluster (on both nodes) Start the SAP R/3 Resource in the Cluster again All ABAP programs need to be re-compiled after the kernel upgrade to 6.20.