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Problem |
The WebSphere® Application Server V5.0
supported prerequisites page includes a list of officially supported
operating platforms supported for use with WebSphere Application Server.
This technote complements the information provided on the prerequisite
page concerning support for Linux®. |
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Cause |
Clarification of WebSphere Application
Server support for certain Linux distributions on x86 (Intel®), zSeries®,
iSeries®, and pSeries® platforms.
The WebSphere supported prerequisites page at:
(http://www.ibm.com/software/webservers/appserv/doc/latest/prereq.html)
lists officially supported operating systems for use
with WebSphere Application Server.
The prerequisite pages for WebSphere Application
Server V6 do not list UnitedLinux among the supported operating systems.
Instead, the support status of individual Linux distributions are listed.
Consult the supported prerequisites page to determine the support status
of a particular Linux distribution for WebSphere Application Server V6
products.
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Solution |
Examples of Linux distributions powered by
UnitedLinux
The following list identifies some Linux distributions
that are powered by UnitedLinux. This list is not comprehensive. Refer to
the support site for your particular Linux distribution to determine if
that release of Linux is powered by UnitedLinux.
Examples of Linux distributions NOT powered by
UnitedLinux
The following list shows some examples of Linux
distributions which are not powered by UnitedLinux. This list is not
comprehensive.
- Red Hat Enterprise Linux
3.0
- SUSE LINUX Enterprise Server
9
WebSphere Application Server products support several
non-UnitedLinux operating systems. Refer to the supported prerequisites page to
determine whether a particular non-UnitedLinux operating system is
supported.
WebSphere on Linux: Support for x86 (Intel),
zSeries, iSeries®, and pSeries® systems
For the purposes of product support
statements, similarly named Linux distributions are considered distinct
from each other on the x86 (Intel), zSeries, iSeries, and pSeries hardware
architectures. For example, support for ExampleBrand Linux on x86
(Intel) systems does not imply support for ExampleBrand Linux on zSeries
systems. Support for ExampleBrand
Linux on zSeries does not imply support
for ExampleBrand Linux on iSeries or pSeries.
When consulting the WebSphere supported prerequisites
page, note the architecture for the version
of Linux that is supported.
Linux distributions and UnitedLinux 1.0
Several Linux distributions are Powered by UnitedLinux 1.0. To
determine whether or not a particular distribution and version of Linux is
powered by UnitedLinux 1.0, check the support page provided by the company
supporting that product.
The supported prerequisites pages for current versions of WebSphere
products do not list specific distributions of Linux that are powered by
UnitedLinux 1.0. Instead, the supported prerequisites page lists the
support status of UnitedLinux 1.0.
For example, the SuSE product support pages for SuSE
Linux Enterprise Server 8 (SLES 8) state that the product is powered by
UnitedLinux 1.0. SLES 8 is powered by UnitedLinux 1.0, so SLES 8 is not
specifically listed on the WebSphere supported prerequisites pages. The
support status for UnitedLinux 1.0 shows the support status for SLES
8.
The UnitedLinux standard has been revised, and various
service packs are available to enhance Linux distributions powered by
UnitedLinux 1.0. For example, Service Pack 3 (SP3) is available for
UnitedLinux 1.0. A Linux distribution enhanced with UnitedLinux 1.0
Service Pack 3 is referred to as UnitedLinux 1.0 SP3.
Support for UnitedLinux 1.0 x86 (Intel)
systems
WebSphere Application Server version 4.0 introduced support for all
x86 (Intel) Linux distributions powered by UnitedLinux 1.0 as of
Fix Pack 6. Therefore,
if a particular distribution of Linux is powered by UnitedLinux 1.0 on
Intel, it is supported starting with WebSphere Application Server
version 4.0.6.
WebSphere Application Server version 5.0 introduced support for all
x86 (Intel) Linux distributions powered by UnitedLinux 1.0 as of
Fix Pack 1. Therefore,
if a particular distribution of Linux is powered by UnitedLinux 1.0 on
Intel, it is supported starting with WebSphere Application Server
version 5.0.1.
WebSphere Application Server version 5.1 at its base level supports all x86
(Intel) Linux distributions powered by UnitedLinux 1.0 SP2a on
Intel.
Support for zSeries systems
As of the publication date of this document, the
latest version of WebSphere Application Server version 4.0 (V4.0.7) does notyet support all zSeries Linux
distributions powered by UnitedLinux 1.0. Check
the Supported Prerequisite page for version 4.0.7 for support regarding
specific Linux distributions. Some UnitedLinux 1.0 distributions on
zSeries might not have been tested at the WebSphere Application Server
4.0.7 level.
WebSphere Application Server version 5.0 introduced support for all
zSeries Linux distributions powered by UnitedLinux 1.0 as of
Fix Pack 2. In other
words, if a particular distribution of Linux is powered by UnitedLinux 1.0
on zSeries, it is supported starting with WebSphere Application Server
version 5.0.2.
WebSphere Application Server version 5.1 at its base level supports all
OS/390-based Linux distributions powered by UnitedLinux 1.0 on
OS/390®.
Support for iSeries and pSeries systems
WebSphere Application Server version 4.0 does not
support Linux on iSeries or pSeries
systems.
WebSphere Application Server version 5.0 introduced support for all
iSeries and pSeries Linux distributions powered by UnitedLinux 1.0 as
of Fix Pack 2.
In other words, if a particular distribution of Linux is powered by
UnitedLinux 1.0 on iSeries and pSeries, it is supported starting with
WebSphere Application Server version 5.0.2. The prerequisite page
states that this is supported on 64-bit hardware only.
WebSphere Application Server version 5.1 at its base level supports all iSeries
and pSeries Linux distributions powered by UnitedLinux 1.0.
General information about supported
prerequisites
Supporting prerequisite page is the official
support source
The WebSphere supported prerequisites page takes
precedence over all other WebSphere Application Server support statements,
including this document. If another document presents information that
conflicts with the WebSphere supported prerequisites page, the information
on the WebSphere supported prerequisites page overrides the conflicting
statement.
WebSphere branded products, including WebSphere
Application Server
WebSphere branded product refers to WebSphere
Application Server Enterprise Edition, WebSphere Portal Server, WebSphere
Commerce Suite, and other WebSphere products that are dependent on
WebSphere Application Server.
Other WebSphere branded products that are dependent on
WebSphere Application Server might have supported prerequisites pages of
their own. To use a WebSphere branded product, the prerequisites must be
met for bothWebSphere Application Server and the WebSphere branded
product.
Be especially careful to check that the WebSphere
branded product is compatible with the fix pack level of the underlying
WebSphere Application Server. WebSphere Application Server might introduce
support for a new operating system at some point, but this does not imply
that the WebSphere branded product automatically supports that new
operating system. The following scenario helps illustrate the impact of
this statement:
Assume that WebSphere
Application Server introduces support for a new operating
system,newOS 2004, as of Fix Pack 10. A WebSphere branded product
(for example, WebSphere Portal Server), which is dependent on WebSphere
Application Server, supports operating system newOS 2004 only if the following two
conditions are true:
- The supported prerequisite page for the
WebSphere branded product (in this case Portal Server) must explicitly
state that it also supports operating system newOS 2004.
- The supported prerequisite page for the
WebSphere branded product (Portal Server) must state that it supports
WebSphere Application Server at Fix Pack 10.
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