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SUSE Linux Enterprise Server for SAP Applications 12 SP1

Migrating SUSE Linux Enterprise Server 12 SP1 to SUSE Linux Enterprise Server for SAP Applications 12 SP1

Guide for SAP HANA 2.0 Deployments on IBM Power Systems

SUSE Best Practices
SAP
Author
Mike Friesenegger, Technology Strategist Alliances and Integrated Systems (SUSE)
Image
SUSE Linux Enterprise Server for SAP Applications 12 SP1
SUSE Linux Enterprise Server 12 SP1
Date: December 1st, 2016
This short technical document outlines the procedure to migrate a newly installed SUSE Linux Enterprise Server 12 SP1 for Power Systems to SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power Systems. Disclaimer: Documents published as part of the SUSE Best Practices series have been contributed voluntarily by SUSE employees and third parties. They are meant to serve as examples of how particular actions can be performed. They have been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. SUSE cannot verify that actions described in these documents do what is claimed or whether actions described have unintended consequences. SUSE LLC, its affiliates, the authors, and the translators may not be held liable for possible errors or the consequences thereof.

1 Overview

SAP unveiled SAP HANA 2 on November 8, 2016 (see http://news.sap.com/sap-to-unveil-sap-hana-2/). Little endian support for IBM Power Systems will be officially available when SAP HANA 2 is released to customers on November 30, 2016. SUSE, the only Linux distribution for SAP HANA on Power Systems, is supporting the SAP HANA 2 availability by releasing SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power Systems on November 30, 2016. This means that IBM Power Systems customers can get all of the benefits of SUSE Linux Enterprise Server for SAP Applications for Power Systems especially the built-in high-availability clustering and automated failover for SAP HANA but on little endian.

To meet the release schedule, no installation media will be provided for SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power Systems (SLES for SAP12 SP1 ppc64le). This means that a deployment will install SUSE Linux Enterprise Server 12 SP1 for Power Systems (SLES12 SP1 ppc64le) and then migrate and register the installed product to SLES for SAP12 SP1 ppc64le.

The sections below outline the procedure to migrate a newly installed SUSE Linux Enterprise Server 12 SP1 for Power Systems to SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power Systems.

2 Migration Procedure

Prerequisites

  • Go to the download page for SUSE Linux Enterprise Server 12 SP1 for POWER (see https://download.suse.com/Download?buildid=ivKxefYE5gc~) and download DVD1 of the SLES12 SP1 ppc64le installation media

  • The system must be able to register externally to scc.suse.com or internally to an SMT server

Warning
Warning: Attention

This procedure has only been tested on new installations using the SLES12 SP1 ppc64le installation media.

Steps

  1. Install SLES12 SP1 ppc64le

    1. Skip the registration

    2. Do not install any additional Add On Products

    3. Suggestion: Install the operating system disk using the Btrfs file system. Learn more about Btrfs in section Major File Systems in Linux of the Storage Administration Guide for SUSE Linux Enterprise Server 12 at https://documentation.suse.com/sles/12-GA/ (you have to download the documentation via the compressed folder).

    4. Install the following patterns

      • Help and Support Documentation

      • Base System

      • Minimal System (Appliances)

  2. Review the knowledgebase article Migrating a SLES 12 SP1 for POWER LE system to SLES for SAP Applications for POWER LE 12 SP1 (see https://www.suse.com/support/kb/doc?id=7018295and download the latest migration package which is referenced in this article.

  3. OPTIONAL: If you use Btrfs for the OS disk, create a pre-snapshot in case you want to undo the migration:

    # snapper create -t pre -p -d “before sles for sap”

    Important
    Important

    Make note of the snapshot number after running this command

  4. Install and run the migration script

    # rpm -Uvh migrate-sles-to-sles4sap-*.noarch.rpm

    # Migrate_SLES_to_SLES-for-SAP-12.sh

    • Answer ‘y’ to proceed with the next step in the migration

    • Answer ‘n’ if you would like to migrate and register using scc.suse.com

      • Enter your email address to register SLES for SAP Applications 12 SP1 for Power Systems

      • Enter your activation code for SLES for SAP Applications 12 SP1 for Power Systems

    • OR

      Answer ‘y’ if you would like to migrate and register using a local SMT server

      • Enter the https URL of the SMT server (example: https://mysmt.company.com)

  5. OPTIONAL: If you use for the OS disk, create a post-snapshot in case you want to undo the migration

    # snapper create -t post --pre-number <# from step 3> -d “after sles for sap”

3 Next Steps

The product ID for the system is now SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power Systems. The system has also been registered which enables you to update the existing installed packages and install additional patterns and packages needed to install SAP HANA and make SAP HANA System Replication highly available.

Please refer to the SAP ONE Support Launchpad at https://launchpad.support.sap.com/#/notes/2055470 for specific details.

If this system is a test system and you would like to undo the migration to test the procedure again, use snapper to undo the changes. For more detailed information about how to proceed, refer to section Using Snapper to Undo Changes of the SUSE Linux Enterprise Server 12 Administration Guide at https://documentation.suse.com/sles/12-GA/ (you have to download the documentation via the compressed folder). The steps below can be used as an initial guide to undo the changes.

  1. Enter # snapper list

  2. Make note of the numbers associated to the before sles for sap and after sles for sap snapshots

  3. Enter # snapper undochange <”before sles for sap” number>..<”after sles for sap” number>

4 Additional Information

This document only applies to SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power. Installation media will be made available for SUSE Linux Enterprise Server for SAP Applications 12 SP2 for IBM Power after SAP has certified SAP HANA 2 for SUSE Linux Enterprise Server for SAP Applications 12 SP2 for IBM Power.

The packages to setup a SMT server are included in the SUSE Linux Enterprise Server 12 SP1 or SUSE Linux Enterprise Server for SAP Applications 12 SP1 for IBM Power Systems repositories. Information about installing and configuring an SMT server can be found at the SUSE Linux Enterprise Server 12 SP1 Subscription Management Tool Guide at https://documentation.suse.com/sles/12-SP1/ (you have to download the documentation via the compressed folder).

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