One of the more common system maintenance tasks is updating the kernel on SAP systems. The video below demonstrates the process of using JSPM to deploy the kernel. Using JSPM provides a simpler, automated process over the manual process.
Since this process restarts the SAP Applications running on the local system, patching the kernel should be done during schedule downtime. Our test server is a Windows 2003 64-bit server running on a Quad Core system with 4GB RAM. The total time to complete the deployment was approximately 15 minutes. The amount of downtime will depend on the SAP services and normal times to stop and start each SAP system.
SAP NetWeaver Product Manager
SAP Labs, LLC.