commit 29003efa866e8f691076023ccf2eede2032173d6

Author: Bernd Finger <bfinger@redhat.com>

Date:   Thu Mar 4 13:10:01 2021 +0100

    added detailed explanations for sap_hana_preconfigure_kernel_parameters_ppc64le in README.md

diff --git a/README.md b/README.md

index 74ca820..50359b5 100644

--- a/README.md

+++ b/README.md

@@ -245,6 +245,17 @@ sap_hana_preconfigure_kernel_parameters:

   - { name: net.ipv4.tcp_slow_start_after_idle, value: 0 }

 ```

+###  HANA kernel parameters for IBM POWER servers

+[SAP Note 2055470](https://launchpad.support.sap.com/#/notes/2055470) contains links to IBM documents for SAP HANA on POWER.

+Among these is a document document which contains certain recommended Linux kernel settings for SAP HANA on POWER:

+Network_Configuration_for_HANA_Workloads_on_IBM_Power_Servers_V7.1.pdf.

+This document is linked from SAP note 2055470 via "SAP HANA on IBM Power Systems and IBM System Storage - Guides", then via

+"SAP on Linux and IBM Storage Guides (incl. HANA)", and then then via

+"SAP on Power Linux Network and Fibre Channel Guides".

+The default parameter recommendations are also defined in ./vars/{{ansible_os_release}}.yml. If you need to add or change parameters

+for your system, copy these parameters from the vars file into the variable sap_hana_preconfigure_kernel_parameters_ppc64le and

+add or change your settings, similar to the previous example.

+

 Example Playbook

 ----------------