Article ID: 309395 - View products that this article applies to.
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This article describes the Microsoft support policy for server clusters, the Hardware Compatibility List (HCL), and the Windows Server Catalog (WSC). Microsoft Product Support Services (PSS) supports only server clusters on hardware that is listed on the Cluster HCL for Windows 2000 Server and Windows NT server, or on the Cluster WSC for Windows 2003 Server. In this context, "server clusters" refers to computers that run the Microsoft Cluster service, not Network Load Balancing (NLB) or Windows Load Balancing Service (WLBS).
To view the most current Windows Server 2000 and Windows Server 2003 Cluster Solutions list, visit the following Microsoft Web site:
http://www.windowsservercatalog.com/When you visit this Web site, click Cluster Solutions in the hardware testing status section. To search by components of a cluster solution, use any of the three search boxes available in the left navigation pane of the Cluster Solutions page. Type a product or vendor name in any of the search boxes to view cluster solutions that contain the product name or vendor name that you are searching for. Search results can then be filtered by OS compatibility, by vendor name, and by processor architecture. To filter the search results by category, such as geographically dispersed cluster solutions, use the category filter.
Note When you click any of the arrows next to the search boxes in the left navigation pane, the search boxes will simultaneously filter the results by the text that you typed in all the search boxes.
Windows Server 2008 Cluster solutions will not be listed in the Windows Server Catalog. For more information, visit the following Failover Clustering Configuration Program Web site:
http://www.microsoft.com/windowsserver2008/en/us/clustering-program.aspxFor more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/943984/ )The Microsoft Support Policy for Windows Server 2008 Failover Clusters
Note For more information about the WSC and the HCL for other Microsoft operating systems, visit the following Microsoft Web site:
http://www.microsoft.com/whdc/hclCustomers should not use this list to build a cluster solution because using these individual components in a cluster does not qualify as a complete HCL or WSC solution. PSS fully supports only clusters that are complete solutions that are listed in the Cluster category on the HCL or WSC.
A typical HCL or WSC-compliant cluster contains the following components:
However, there may still be configuration issues with an HCL-compliant or a WSC-compliant cluster. Therefore, we recommend that you run the Microsoft Cluster Configuration Validation Wizard to determine any potential configuration problems before you configure a Windows 2000 server cluster or a Microsoft Windows Server 2003 server cluster. To download the Microsoft Cluster Configuration Validation Wizard, visit the following Microsoft Web site:
http://www.microsoft.com/downloads/details.aspx?FamilyID=bf9eb3a7-fb91-4691-9c16-553604265c31&DisplayLang=enWhen you configure a Windows NT 4.0-based server cluster, the cluster installation routine displays the following agreement:
Microsoft Cluster Server (MSCS) is only supported if it is installed on a hardware configuration that has been tested for compatibility with the MSCS software.The Cluster Setup program in Windows 2000 displays the following agreement:
Press I Agree to accept these conditions.
Your hardware configuration must be tested for compatibility with the Cluster service.Windows Server 2003 does not display a dialog box that prompts for acceptance of the HCL or WSC agreement during the cluster configuration. The requirements for the Cluster service do state that an HCL cluster is required.
Microsoft does not support hardware configurations other than those listed in the Cluster category of the Hardware Compatibility List (HCL) located at
To indicate that you understand that Microsoft does not support hardware configurations that are not listed in the Cluster category of the HCL, click I Understand.
SAN, Geographically dispersed clusters, and Windows 2000 Datacenter ServerIf multiple clusters are attached to the same storage area network (SAN) device, extra steps are required. The nodes in the cluster must be certified with the particular SAN device. The SAN device itself must be certified as Multi-Cluster capable and listed in the Cluster/Multi-Cluster Device category.
If the cluster solution includes geographically dispersed cluster nodes, additional items such as network latency and shared disk support must be verified. The entire cluster solution must be listed in the Cluster/Geographic category. See the following Microsoft Knowledge Base article for details:
280743Server clusters that run on Windows 2000 Datacenter Server have additional requirements for support. There may be certain contractual limitations to which you must adhere. See the following Microsoft Knowledge Base article for details:
(http://support.microsoft.com/kb/280743/ )Windows clustering and geographically separate sites
(http://support.microsoft.com/kb/265173/ )The Datacenter program and Windows 2000 Datacenter Server product
Clusters that are not listed on the HCL in the cluster categoryIf your cluster solution is not listed on the HCL or WSC in the Cluster category, the cluster solution is considered unsupported. However, PSS will offer troubleshooting tips if the customer requests them. PSS does not guarantee that a resolution will be found for non-HCL or non-WSC Clusters.
Steps for support
Some examples of hardware incompatibilities that can cause cluster problems include:
If a complete cluster configuration is listed for an earlier operating system but is not listed for the newer operating system that you are using, support as documented in this section will be followed.
Cluster certificationThe Microsoft Cluster Hardware Compatibility test and Device Qualification program for storage devices is available by obtaining the Cluster Test Kit. A prerequisite for the Cluster Device Qualification program is that your storage product is already qualified. For more information about the Cluster Test Kit, visit the following Microsoft Web site:
http://msdn.microsoft.com/en-us/library/bb892476.aspxFor the HCL policy for non-cluster servers, see the following Microsoft Knowledge Base article:
(http://support.microsoft.com/kb/142865/ )Microsoft support policy on hardware not in the Windows Catalog (Windows HCL)
Article ID: 309395 - Last Review: August 8, 2008 - Revision: 9.2