Supported OS

WebSphere is supported on the following OS (Operating System) platforms:

• Windows

• AIX

• Linux

• Solaris

• i/OS

• z/OS

Beginning with Version 6.1 and now with Version 8, IBM is supporting open standard specifications and have aligned WAS with a view to a more common approach across all the platforms, to the extent that WAS now works with a large number of Web servers including Apache HTTP Server, Netscape Enterprise Server, Microsoft Internet Information Services (IIS), IBM HTTP Server for i5/OS, IBM HTTP Server for z/OS, and IBM HTTP Server for AIX/Linux/Microsoft Windows/Solaris.

Following is a table of Platforms and recommended versions of OS:

OS	Supported Version
Linux 32	Red Hat Enterprise Linux (RHEL) 5.0 Advanced Platform (32- and 64-bit kernels) Red Hat Enterprise Linux 5.0 Desktop editions (32- and 64-bit kernels) SUSE Linux Enterprise Desktop (SLED) 10.0 (32- and 64-bit kernels) SUSE Linux Enterprise Desktop 11.0 (32- and 64-bit kernels) SUSE Linux Enterprise Server (SLES) 10.0 (32- and 64-bit kernels) SUSE Linux Enterprise Server 11.0 (32- and 64-bit kernels)
Linux 64	Red Hat Enterprise Linux 5.0 Advanced Platform (64-bit kernels only) Red Hat Enterprise Linux 5.0 Desktop editions Platform (64-bit kernels only) SUSE Linux Enterprise Desktop 10.0 (64-bit kernels only) SUSE Linux Enterprise Desktop 11.0 (64-bit kernels only) SUSE Linux Enterprise Server 10.0 (64-bit kernels only) SUSE Linux Enterprise Server 11.0 (64-bit kernels only)
HP-UX	HP-UX 11iv2 with Patch Bundle dated December 2007 (64-bit kernel support) HP-UX 11iv3 with Patch Bundle dated September 2009 (64-bit kernel support)
Solaris 32	Oracle Solaris Version 10 with a patch cluster dated October 2009 or later (32- and 64-bit kernel support)
Solaris 64	Oracle Solaris Version 10 with a patch cluster dated October 2009 or later (64-bit kernel support)
Windows 32	Microsoft XP Professional with SP2 Microsoft Windows Server 2003, Datacenter with SP2 (32- and 64-bit editions) Microsoft Windows Server 2003, Enterprise with SP2 (32 and 64-bit editions) Microsoft Windows Server 2003, Standard with SP2 (32- and 64-bit editions) Microsoft Windows Server 2003 R2 (32- and 64-bit editions) Microsoft Vista Business Microsoft Vista Enterprise Microsoft Vista Ultimate Microsoft Vista Ultimate SP1 Microsoft Windows 7 Enterprise (32- and 64-bit editions) Microsoft Windows 7 Professional (32- and 64-bit editions) Microsoft Windows 7 Ultimate (32- and 64-bit editions) Microsoft Windows Server 2008, Datacenter with SP1 (32- and 64-bit editions) Microsoft Windows Server 2008, Enterprise with SP1 (32 and 64-bit editions) Microsoft Windows Server 2008, Standard with SP1 (32- and 64-bit editions) Microsoft Windows Server 2008 R2, Standard (64-bit edition only) Microsoft Windows Server 2008 R2, Enterprise (64-bit edition only) Microsoft Windows Server 2008 R2, Datacenter (64-bit edition only)
Windows 64	Microsoft Windows Server 2003 Enterprise with SP2 (64-bit edition only) Microsoft Windows Server 2003 Datacenter with SP2 (64-bit edition only) Microsoft Windows Server 2003 Standard with SP2 (64-bit edition only) Microsoft Windows Server 2003 R2 (64-bit editions only) Microsoft Windows Server 2008 Enterprise with SP1 (64-bit edition only) Microsoft Windows Server 2008 Datacenter with SP1 (64-bit edition only) Microsoft Windows Server 2008 Standard with SP1 (64-bit edition only) Microsoft Windows Server 2008 R2, Standard (64-bit edition only) Microsoft Windows Server 2008 R2, Enterprise (64-bit edition only) Microsoft Windows Server 2008 R2, Datacenter (64-bit edition only)
AIX 32	AIX 6.1 with Recommended Maintenance package 6100-00-04
AIX 64	AIX 6.1 with Recommended Maintenance package 6100-00-04
z/OS 32	z/OS: V1.10, 1.11, or 1.12
z/OS 64	z/OS: V1.10, 1.11, or 1.12