I am writing this blog for the audience who want to migrate OS users along with SAP Application, DB from one source OS environment to different OS environment. Like we migrated all SAP systems running on RHEL6.1 in source and RHEL8.2 in target. Below steps need to be performed so that OS users can be....
Starting with SAP Landscape Management (LaMa) Support Package (SP) 21 the cluster integration for the SUSE Linux Enterprise high availability extension was implemented. Now with LaMa SP25 it also integrates with Red Hat Enterprise Linux High Availability Clusters, which means that the pacemaker support is completed for all SAP HANA database environments. This blog describes....
This is part 2 of a blog post describing the sizing of virtual machines running SAP HANA on Red Hat Virtualization. Part 1 covered virtual sizing concepts and is available here: https://blogs.sap.com/2022/05/26/sizing-sap-hana-virtual-machines-part-1 . Virtual Sizing Guidelines & Assumptions Consider the following when sizing a SAP HANA virtual machine with respect to virtual CPU and virtual memory:....
This blog post will describe the sizing of virtual machines running SAP HANA on Red Hat Virtualization. The blog is organized into two parts. Part 1 provides some sizing background and virtual concepts. Part 2 will cover an example of sizing a SAP HANA virtual machine with respect to CPU and memory. Thanks to the following Red....
Security-Enhanced Linux is a Linux Security Model (LSM) that allows defining security policies to implement mandatory access controls (MAC), providing a very granular layer to strengthen the OS against attacks. Despite the obvious benefits of using SELinux, it has been historically advised not to use it on Enforcing mode (we will see what this is....
SAP Startup Framework now natively supports systemd on Linux SAP applications have been available on Linux since 1999, and ever since SAP has used System-V startup scripts to start the applications automatically on all UNIX-like operating systems. This has been a big benefit in the past because SAP administrators could use the same knowledge for....
Simplification, automation and quick response to business needs is a requirement for most of our clients. Typically, customers run a number of SAP systems. Each system consists of one or more database instances (SAP HANA, IBM Db2, Oracle) and several SAP NetWeaver application servers. By using SAP Landscape Management software in combination with IBM PowerVC, clients gain....
