SUSE Linux Enterprise High Availability Extension 15 SP1

Release Notes

SUSE Linux Enterprise High Availability Extension is an enterprise-level
clustering solution to implement highly available Linux clusters and eliminate
single points of failure. This document provides an overview of high-level
general features, capabilities, and limitations of SUSE Linux Enterprise High
Availability Extension 15 SP1 and important product updates.

These release notes are updated periodically. The latest version is always
available at https://www.suse.com/releasenotes. General documentation can be
found at: https://documentation.suse.com/sle-ha/15-SP1.

Publication Date: 2022-04-27, Version: 15.1.20220427

1 About the Release Notes
2 SUSE Linux Enterprise High Availability Extension
3 Technology Previews
4 Removed and Deprecated Features and Packages
5 Obtaining Source Code
6 Legal Notices

1 About the Release Notes

The most recent version of the Release Notes is available online at https://
www.suse.com/releasenotes.

These Release Notes are identical across all supported architectures.

Entries can be listed multiple times if they are important and belong to
multiple sections.

Release notes usually only list changes that happened between two subsequent
releases. Certain important entries from the release notes documents of
previous product versions may be repeated. To make such entries easier to
identify, they contain a note to that effect.

Repeated entries are provided as a courtesy only. Therefore, if you are
skipping one or more service packs, check the release notes of the skipped
service packs as well. If you are only reading the release notes of the current
release, you could miss important changes.

2 SUSE Linux Enterprise High Availability Extension

SUSE Linux Enterprise High Availability Extension is an affordable, integrated
suite of robust open source clustering technologies that enable enterprises to
implement highly available Linux clusters and eliminate single points of
failure. Used in combination with SUSE Linux Enterprise Server, it helps
organizations maintain business continuity, protect data integrity, and reduce
unplanned downtime for their mission-critical Linux workloads.

SUSE Linux Enterprise High Availability Extension provides all essential
monitoring, messaging, and cluster resource management functionality of
proprietary third-party solutions, but at a more affordable price, making it
accessible to a wider range of enterprises.

The tight integration of SUSE Linux Enterprise High Availability Extension and
SUSE Linux Enterprise Server ensure that the most robust, secure, and
up-to-date high availability solution. Based on an innovative, highly flexible
policy engine, it supports a wide range of clustering scenarios.

With static or stateless content, the High Availability cluster can be used
without a cluster file system. This includes web services with static content
as well as printing systems or communication systems like proxies that do not
need to recover data.

Finally, its open-source license minimizes the risk of vendor lock-in, and its
adherence to open standards encourages interoperability with industry standard
tools and technologies.

2.1 What Is New?

SUSE Linux Enterprise High Availability Extension 15 introduces many innovative
changes compared to SUSE Linux Enterprise High Availability Extension 12.

In addition to the these release notes, make sure to also review the release
notes for the base product, SUSE Linux Enterprise Server 15 SP1, which are
published at https://www.suse.com/releasenotes/x86_64/SUSE-SLES/15-SP1 (these
release notes are identical across all supported hardware architectures).

2.2 Important Sections of This Document

If you are upgrading from a previous SUSE Linux Enterprise High Availability
Extension release, you should review at least the following sections:

  o Section 2.4, "Support Statement for SUSE Linux Enterprise High Availability
    Extension"

2.3 Support and Life Cycle

SUSE Linux Enterprise High Availability Extension is backed by award-winning
support from SUSE, an established technology leader with a proven history of
delivering enterprise-quality support services.

SUSE Linux Enterprise High Availability Extension 15 has a 13-year life cycle,
with 10 years of General Support and 3 years of Extended Support. The current
version (SP1) will be fully maintained and supported until 6 months after the
release of SUSE Linux Enterprise High Availability Extension 15 SP2.

If you need additional time to design, validate, and test your upgrade plans,
Long Term Service Pack Support (LTSS) can extend the support you get by an
additional 12 to 36 months in 12-month increments, providing a total of 3 to
5 years of support on any given Service Pack.

For more information, see:

  o The support policy at https://www.suse.com/support/policy.html

  o Long Term Service Pack Support page at https://www.suse.com/support/
    programs/long-term-service-pack-support.html

2.4 Support Statement for SUSE Linux Enterprise High Availability Extension

To receive support, you need an appropriate subscription with SUSE. For more
information, see https://www.suse.com/support/programs/subscriptions/?id=
SUSE_Linux_Enterprise_High_Availability_Extension.

The following definitions apply:

L1

    Problem determination, which means technical support designed to provide
    compatibility information, usage support, ongoing maintenance, information
    gathering and basic troubleshooting using available documentation.

L2

    Problem isolation, which means technical support designed to analyze data,
    reproduce customer problems, isolate problem area and provide a resolution
    for problems not resolved by Level 1 or prepare for Level 3.

L3

    Problem resolution, which means technical support designed to resolve
    problems by engaging engineering to resolve product defects which have been
    identified by Level 2 Support.

For contracted customers and partners, SUSE Linux Enterprise High Availability
Extension 15 SP1 is delivered with L3 support for all packages, except for the
following:

  o Technology Previews, see Section 3, "Technology Previews"

  o Sound, graphics, fonts and artwork

  o Packages that require an additional customer contract

SUSE will only support the usage of original packages. That is, packages that
are unchanged and not recompiled.

2.5 Documentation and Other Information

2.5.1 On the Product Medium

  o For general product information, see the file README in the top level of
    the product medium.

  o For a chronological log of all changes made to updated packages, see the
    file ChangeLog in the top level of the product medium.

  o Detailed change log information about a particular package is available
    using RPM:

    rpm --changelog -qp FILE_NAME.rpm

    (Replace FILE_NAME.rpm with the name of the RPM.)

  o For more information, see the directory docu of the product medium of SUSE
    Linux Enterprise High Availability Extension 15 SP1.

2.5.2 Externally Provided Documentation

  o https://documentation.suse.com/sle-ha/15-SP1 contains additional or updated
    documentation for SUSE Linux Enterprise High Availability Extension 15 SP1.

  o Find a collection of White Papers in the SUSE Linux Enterprise High
    Availability Extension Resource Library at https://www.suse.com/products/
    highavailability/#resources.

3 Technology Previews

Technology previews are packages, stacks, or features delivered by SUSE which
are not supported. They may be functionally incomplete, unstable or in other
ways not suitable for production use. They are included for your convenience
and give you a chance to test new technologies within an enterprise
environment.

Whether a technology preview becomes a fully supported technology later depends
on customer and market feedback. Technology previews can be dropped at any time
and SUSE does not commit to providing a supported version of such technologies
in the future.

Give your SUSE representative feedback about technology previews, including
your experience and use case.

4 Removed and Deprecated Features and Packages

This section lists features and packages that were removed from SUSE Linux
Enterprise High Availability Extension or will be removed in upcoming versions.

4.1 Deprecated Features and Packages

The following features and packages are deprecated and will be removed with a
future service pack of SUSE Linux Enterprise High Availability Extension.

Options for Order Constraints

    Starting with SUSE Linux Enterprise High Availability Extension 15 SP1,
    support for using scores to enforce ordering constraints is deprecated. Use
    the kind option instead. For more information, see the guide Pacemaker 2. 0
    Configuration Explained (https://clusterlabs.org/pacemaker/doc/en-US/
    Pacemaker/2.0/html/Pacemaker_Explained/s-resource-ordering.html) by the
    upstream Pacemaker project.

5 Obtaining 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 https://www.suse.com/download/sle-ha/ on Medium 2. For up to three
years after distribution of the SUSE product, upon request, SUSE will mail a
copy of the source code. Send requests by e-mail to
mailto:sle_source_request@suse.com. SUSE may charge a reasonable fee to recover
distribution costs.

6 Legal Notices

SUSE makes no representations or warranties with regard to the contents or use
of this documentation, and specifically disclaims any express or implied
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SUSE reserves the right to revise this publication and to make changes to its
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such revisions or changes.

Further, SUSE makes no representations or warranties with regard to any
software, and specifically disclaims any express or implied warranties of
merchantability or fitness for any particular purpose. Further, SUSE reserves
the right to make changes to any and all parts of SUSE software, at any time,
without any obligation to notify any person or entity of such changes.

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