29 lines
1.4 KiB
Diff
29 lines
1.4 KiB
Diff
commit 29003efa866e8f691076023ccf2eede2032173d6
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Author: Bernd Finger <bfinger@redhat.com>
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Date: Thu Mar 4 13:10:01 2021 +0100
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added detailed explanations for sap_hana_preconfigure_kernel_parameters_ppc64le in README.md
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diff --git a/README.md b/README.md
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index 74ca820..50359b5 100644
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--- a/README.md
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+++ b/README.md
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@@ -245,6 +245,17 @@ sap_hana_preconfigure_kernel_parameters:
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- { name: net.ipv4.tcp_slow_start_after_idle, value: 0 }
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```
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+### HANA kernel parameters for IBM POWER servers
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+[SAP Note 2055470](https://launchpad.support.sap.com/#/notes/2055470) contains links to IBM documents for SAP HANA on POWER.
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+Among these is a document document which contains certain recommended Linux kernel settings for SAP HANA on POWER:
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+Network_Configuration_for_HANA_Workloads_on_IBM_Power_Servers_V7.1.pdf.
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+This document is linked from SAP note 2055470 via "SAP HANA on IBM Power Systems and IBM System Storage - Guides", then via
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+"SAP on Linux and IBM Storage Guides (incl. HANA)", and then then via
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+"SAP on Power Linux Network and Fibre Channel Guides".
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+The default parameter recommendations are also defined in ./vars/{{ansible_os_release}}.yml. If you need to add or change parameters
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+for your system, copy these parameters from the vars file into the variable sap_hana_preconfigure_kernel_parameters_ppc64le and
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+add or change your settings, similar to the previous example.
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+
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Example Playbook
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----------------
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