| title | description | ms.date | manager | audience | ms.topic | ms.reviewer | ms.custom | ||
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You cannot add a domain controller as a node in a failover cluster environment | Provides some information about how to add a domain controller as a node in a failover cluster environment | 01/15/2025 | dcscontentpm | itpro | troubleshooting | kaushika |
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This article provides some information about how to add a domain controller as a node in a failover cluster environment.
Original KB number: 2795523
When you build a Windows Server 2012 failover cluster environment, you cannot add a server that has the Active Directory Domain Services (AD DS) role as a node.
We do not support combining the AD DS role and the failover cluster feature in Windows Server 2012.
This behavior is by design.
Although we do not recommend this, you can enable domain controllers as a cluster node in Windows Server versions earlier than Windows Server 2012. However, starting with Windows Server 2012, we no longer support this configuration.
For more information about how to use domain controllers as nodes in failover clusters, click the following article number to view the article in the Microsoft Knowledge Base:
281662 How to use Windows Server cluster nodes as domain controllers
For more information about Microsoft support policy for Windows Server 2012 failover clusters, click the following article number to view the article in the Microsoft Knowledge Base:
2775067 The Microsoft support policy for Windows Server 2012 failover clusters
