Maximum number of supported nodes in a cluster

Summary

 This article describes the maximum number of supported nodes that are permitted in a Failover Cluster.

More Information

The Windows Server Failover Clustering feature supports a certain maximum number of servers in a cluster. Servers in a Failover Cluster are also called nodes. The maximum number of nodes varies depending on the version of the operating system.

The following table outlines the maximum number of nodes that are supported in a cluster and the required shared disk configuration.
Operating SystemNumber of nodesStorage
Windows NT 4.0 Enterprise Edition
Windows 2000 Advanced Server
Windows 2000 Datacenter Server
Windows Server 2003, Enterprise Edition
Windows Server 2003, Enterprise x64 Edition
Windows Server 2003, Datacenter Edition
Windows Server 2003, Datacenter x64 Edition
1-2SCSI
Windows NT 4.0 Enterprise Edition
Windows 2000 Advanced Server
1-2Fibre Channel
Windows 2000 Datacenter Server1-4Fibre Channel
Windows Server 2003, Enterprise Edition
Windows Server 2003, Enterprise x64 Edition
Windows Server 2003, Enterprise Edition for Itanium-based Systems
Windows Server 2003, Datacenter Edition
Windows Server 2003, Datacenter x64 Edition
Windows Server 2003, Datacenter Edition for Itanium-based Systems
Windows Server 2008, Enterprise Edition
Windows Server 2008, Enterprise Edition for Itanium-based Systems
Windows Server 2008, Datacenter Edition
Windows Server 2008, Datacenter Edition for Itanium-based Systems
1-8Fibre Channel, iSCSI, or SAS
Windows Server 2008, Enterprise x64 Edition
Windows Server 2008, Datacenter x64 Edition
Windows Server 2008 R2 Enterprise

Windows Server 2008 R2 Datacenter

Microsoft Hyper-V Server 2008 R2
1-16Fibre Channel, iSCSI, or SAS
Properties

Article ID: 288778 - Last Review: Mar 20, 2012 - Revision: 1

Microsoft Windows Server 2003, Enterprise Edition (32-bit x86), Microsoft Windows Server 2003, Datacenter Edition (32-bit x86), Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems, Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems, Microsoft Windows Server 2003, Enterprise x64 Edition, Microsoft Windows Server 2003, Datacenter x64 Edition, Microsoft Windows 2000 Advanced Server, Microsoft Windows NT Server 4.0 Enterprise Edition, Windows Server 2008 Datacenter without Hyper-V, Windows Server 2008 Enterprise without Hyper-V, Windows Server 2008 for Itanium-Based Systems, Windows Server 2008 Datacenter, Windows Server 2008 Enterprise, Windows Server 2008 R2 Enterprise, Windows Server 2008 R2 Datacenter, Microsoft Hyper-V Server 2008 R2

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