SUSE Linux Enterprise Server for SAP Applications 12 SP3

Release Notes

SUSE Linux Enterprise Server for SAP Applications combines SUSE Linux Enterprise Server and its High Availability Extension with additional software specifically meant to simplify running and managing SAP applications. These are the release notes of SLES for SAP Applications.

Manuals can be found in the docu directory of the installation media for SUSE Linux Enterprise Server for SAP Applications. Any documentation (if installed) can be found in the /usr/share/doc/ directory of the installed system.

Publication Date: 2018-06-14, Version: 12.3.20180607

1 SLES for SAP Applications

Make sure to also review the release notes for the base product, SUSE Linux Enterprise Server 12 SP3 which are published at https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12-SP3/.

1.1 ESPOS Updates Shipped Directly in Update Repositories

In SLES for SAP 11, updates related to Extended Service Pack Overlay Support (ESPOS) were shipped from special repositories.

In SLES for SAP 12 SP3 and later, updates related to ESPOS are shipped directly from the Update repositories. This means, there is no separate ESPOS repository to set up.

1.2 Support Statement for SLES for SAP Applications

Support requires an appropriate subscription from SUSE. For more information, see https://www.suse.com/products/sles-for-sap.

General Support Statement

The following definitions apply:

  • L1: Installation and problem determination - technical support designed to provide compatibility information, installation and configuration assistance, usage support, on-going maintenance and basic troubleshooting. Level 1 Support is not intended to correct product defect errors.

  • L2: Reproduction of problem isolation - technical support designed to duplicate customer problems, isolate problem areas and potential issues, and provide resolution for problems not resolved by Level 1 Support.

  • L3: Code Debugging and problem resolution - technical support designed to resolve complex problems by engaging engineering in patch provision, resolution of product defects which have been identified by Level 2 Support.

SUSE will only support the usage of original (unchanged or not recompiled) packages.

2 Features

This section includes an overview of major new features provided by SUSE Linux Enterprise Server for SAP Applications.

2.1 cryptctl Disk Encryption Utility Verifies Client Computer Identity via TLS certificates

Previously, the cryptctl server would hand out an encryption key to all computers that requested one using a valid disk UUID. The client computer's identity was not further verified.

In the version of cryptctl shipped with SLES for SAP 12 SP3, servers can optionally also verify the identity of client computers via TLS certificates for all communications that take place between them.

2.2 cryptctl Disk Encryption Utility Can Work with Dedicated Key Management Appliances

KMIP (Key Management Interoperability Protocol) is an industrial standard protocol for managing cryptographic keys. In the latest cryptctl, KMIP version 1.3 is supported so that cryptctl can store and manage disk encryption keys on a KMIP-compatible key management appliance.

Be aware that the decision to use a key management appliance for key storage must be made during the initial server setup. There is no migration path between storing keys on a key management appliance versus on a server's hard drive.

2.3 SAP NetWeaver Integration

The SAP NetWeaver integration has been improved to match the growing usability of cluster solutions especially during SAP maintenance procedures. This includes the visibility of the cluster solution in the SAP Management Console (SAP MC) and support for SAP kernel updates.

sap_suse_cluster_connector has been updated to API version 3 to support the newest features and calls from sapstartsrv. This includes transparent support for SAP rolling kernel switches (RKS) for central services instances and replication instances.

2.4 Improved Documentation for Setup and Usage of clamsap

The documentation for clamsap has been added to the package and a new chapter in the online documentation has been added.

2.5 Modified RPM Software Pattern for SAP Business One

The RPM software pattern for SAP Business One has been adjusted to include packages required by version 9.3.

2.6 Installation Wizard Support for SAP HANA MDC

SAP HANA allows installing multiple database containers (MDC) within a single SAP HANA installation. Now the SAP Installation Wizard allows for such an installation as well.

2.7 Extended clone-master-clean-up.sh Script

Further clean up steps have been added to clone-master-clean-up.sh, such as MachineId and UUIDs within /etc/fstab, etc.

2.8 Support for SAP HANA TDI Environments in the SAP Installation Wizard

Tip

This entry has appeared in a previous release notes document.

The SAP Installation Wizard now follows SAP's recommendation for partitioning and creates the following setup:

  • /hana/data, size: RAM*1

  • /hana/log, size: RAM*1, with a maximum of 512 GB

  • /hana/shared, size: RAM*1, with a maximum of 1 TB

  • /usr/sap, size: 52 GB

2.9 Extended sapconf/saptune Coverage

The packages sapconf and saptune have been extended to cover system tuning for SAP Adaptive Server Enterprise and SAP Business Objects.

3 POWER-Specific Features

The following notes apply to SLES for SAP Applications on the POWER architecture.

3.1 512 TB Virtual Address Space on POWER

Certain workloads require a large virtual address space for a single process

The virtual address space limit has been increased from 64 TB to 512 TB on the POWER architecture. To maintain compatibility with older software and hardware, processes are limited to 128 TB virtual address space unless they explicitly map memory above 128 TB.

This functionality is supported starting with kernel 4.4.103. We always recommend using the latest kernel update to get fixes for any issues found over the product lifetime.

4 How to Obtain Source Code

This SUSE product includes materials licensed to SUSE under the GNU General Public License (GPL). The GPL requires SUSE to provide the source code that corresponds to the GPL-licensed material. The source code is available for download at http://www.suse.com/download-linux/source-code.html. Also, for up to three years after distribution of the SUSE product, upon request, SUSE will mail a copy of the source code. Requests should be sent by e-mail to mailto:sle_source_request@suse.com or as otherwise instructed at http://www.suse.com/download-linux/source-code.html. SUSE may charge a reasonable fee to recover distribution costs.

5 More Information and Feedback

  • Read the READMEs on the media.

  • Get detailed changelog information about a particular package from the RPM:

    rpm --changelog -qp FILE_NAME.rpm

    FILE_NAME is the name of the RPM.

  • Check the ChangeLog file in the top level of the first medium for a chronological log of all changes made to the updated packages.

  • Find more information in the docu directory of first medium of the SLES for SAP Applications media.

  • http://www.suse.com/documentation/sles_for_sap/ contains additional or updated documentation for SLES for SAP Applications.

  • For the latest product news from SUSE, visit http://www.suse.com/products/.

Copyright © 2010- 2018 SUSE LLC.

Thank you for using SUSE Linux Enterprise Server for SAP Applications in your business.

The SUSE Linux Enterprise Server for SAP Applications Team.

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