SAP on AIX

Find information, blog posts, and useful resources for running your SAP system on the IBM operating system AIX.

Featured Content

SAP on AIX Best Practices

An update to the well-known Best Practices guide has been published by IBM. This version concentrates purely on SAP on AIX and contains up-to-date information about how to optimally utilize and configure AIX and PowerVM for SAP.

Link to IBM Whitepaper

SAP Applications with AIX Live Update

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

SMC-R on AIX for SAP - Experience report

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

IBM AIX Enhancements and Modernization

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

Expert Content

AIX 7.2 Technology Level 5 is available

AIX 7.2 Technology Level 5 is available and supported for SAP. For announcement and summary of capabilities see:

IBM AIX 7.2 with Technology Level 5 Release Notes

Server Message Block (SMB) Version 3.0.2 now supported for AIX

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

SAP Kernel 781 on AIX released with S/4HANA 2020

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

How to avoid out of memory situations

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