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Support of Rolling Kernel Switch on Windows Failover Clusters Linux: Rolling Kernel Switch in Pacemaker based NetWeaver HA environments Important SAP notes to review in relation to SAP Rolling Kernel Switch (RKS) are:

It’s important to note that while the detailed steps outlined in this blog post are for Linux, the Rolling Kernel Switch (RKS) will work equally as well in Windows environments on Azure that follow the Microsoft reference architecture for SAP NetWeaver (Windows) for AnyDB on Azure.

In this blog post I’d like to demonstrate how an SAP on Azure infrastructure deployed following Microsoft’s reference architecture for SAP S/4HANA for Linux VMs on Azure in combination with an SAP native capability called Rolling Kernel Switch (RKS) can enable the SAP Kernel to be patched with minimized business downtime. SAP Application (Enhancement Packages and Support Packages).Given the business criticality of SAP to this customer, minimizing planned downtime during patching was a key requirement and something that had to be addressed in our SAP on Azure proposal.Īn SAP (on Azure) environment is made up of multiple software components that may need to be patched during the lifecycle of the system:

I was preparing a proposal for a customer recently and one of the pain points with their current SAP infrastructure architecture was that they were unable to patch their SAP environment without impacting their business with planned downtime. Minimizing business downtime during planned maintenance

Primocache kernel component is not running