Find information, blog posts, and useful resources for running your SAP system on the IBM operating system AIX.
You want to avoid costly SAP downtimes when updating your AIX server to newer technology levels or service packs? Check out the White Paper from IBM which validated the AIX Live Update capability in an SAP landscape. The paper is based on hands-on tests and experiences and contains valuable hints and best practices.
Link to White PaperSAP Note 2977742
Check out this IBM Redbook for the latest features of the AIX operating system, including those that became available recently with AIX 7.2 Technology Level 4.
Link to IBM Redbook
With IBM AIX 7.2 TL 2, the AIX operating system supports the new communication protocol solution SMC-R. This IBM white paper demonstrates and summarizes the benefits of using SMC-R in a distributed SAP on AIX environment.
Link to IBM White Paper
Although the references to POWER hardware are out-dated, the IBM Redbook contains a lot of valuable information about POWER and POWER VM features and how they can be utilized in the SAP context. The managing and monitoring chapters provide deep technical insights.
Link to IBM Redbook
The AIX operating system now supports Server Message Block (SMB) client version 3.0.2. The major enhancement compared to client version 2.1 is the capability to use end-to-end encryption. The new client is available through AIX Web Download Pack Programs and the AIX expansion pack for AIX 7.2 and 7.1.
Server Message Block (SMB) client file systemAIX CIFS (SMB1) mount feature no longer supported on AIX 7.2
With the release of S/4HANA 2020 the Application Server on AIX running kernel 7.81 has also become available. The kernel is not downward compatible to the 7.73 and 7.77 kernels and requires AIX 7.2 and a C/C++ runtime level of 16.1.0.6 or higher. See SAP Note 2947755 for the conditions under which kernel 7.81 may be run on AIX 7.1.
2947755 - IBM AIX requirements for SAP Kernel 7.811780629 - AIX: Minimal OS Requirements for SAP Kernel
Running out of virtual memory on your SAP application server is something you definitely want to avoid. Check out this new SAP note which contains valuable hints and tips and best practices how to accomplish this. Learn about the SAP Host Agent metric OS.PercentPSBelowSigdanger which allows you to set an alert before your application server runs into problems.
SAP Note 2630086 - Avoid signal 33, out of memory on AIX
The 722 EX2 kernel is the most recent version of the 722 kernel and can be used as an alternative to the 722 or 722 EXT kernel as well as a downward compatible kernel for the 720 (EXT) or 721 (EXT) kernel. For details and prerequisites see SAP note 2880246.
2880246 - SAP Kernel 722 EX2: General Information and Usage