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Former Member
Mar 03, 2011 at 12:42 PM

32 bit or 64 bit kernel for z/OS


Hi All ,

We have our SAP R/3 4.7 installed in z/OS with DB2 as the database. We have recently upgraded our kernel to the latest version . The path from which we downloaded our Kernel is

My Company's Application Components" SAP KERNEL 32-BIT" SAP KERNEL 6.40_EX2 32-BIT > z/OS 32bit

Now the system is up and running but in our EARLY WATCH REPORT we are getting this particular warning

"You are running a 32-bit SAP kernel on a server with a 64-bit operating system.


32-bit SAP kernels are subject to many restrictions regarding memory management. A 64-bit SAP kernel version is available for your 64-bit operating system and SAP kernel version. Consider switching to this version."

But we are unable to find the 64 bit kernel for z/OS in the download location

My Company's Application Components" SAP KERNEL 64-BIT" SAP KERNEL 6.40_EX2 64-BIT

I wanted to know if there is any 64 bit SAP kernel for z/OS ?

Are we getting a False warning in EWA , if so how to correct the error ?

Thanks and Regards

Basis Team