Managing Serviceguard Extension for SAP on Integrity Linux, December 2005

Step by Step Installation of SGeSAP on Integrity Linux for SAP WAS Central Instances
Linux Configuration
Chapter 2 41
Linux Configuration
The valid Linux kernel to deploy to the servers needs to be certified with
the SAP LinuxLab and at the same time needs to be supported with HP
SGeSAP/LX IPF.
The SAP LinuxLab publishes kernels to deploy on its FTP server. The
latest kernel to deploy can be obtained from SAP. Instructions from
where to download these kernels can be found on
http://www.sap.com/linux/. Additional information on how to contact
the SAP LinuxLab can also be found there.
All supported SGeSAP/LX IPF setups were tested with drivers that are
supported by HP Serviceguard for Linux for Itanium and at the same
time are part of an SAP certified Linux distribution. For these setups, it
is not required to install any driver in addition to those that come with
the Linux distribution. LVM, network bonding and multipathing are
supported via the software that comes with the Linux distribution.
Activities that would endanger SAP support are:
• Recompiling/remaking the Linux kernel after installation.
• Adding drivers that are not part of the installed Linux distribution.
• Adding kernel modules that are not delivered with an open source
license.
A correct Linux configuration ensures that all cluster nodes provide the
environment and system configuration required to run SAP. Several of
the following steps must be repeated on each node. Record the steps
completed for each node, as you complete them. This helps identify
errors in the event of a malfunction later in the integration process. The
Linux configuration task is split into the following sections: