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I want do some SQL Server failover cluster experiment on Windows 2008 R2 in VM. Now I created a domain controller(as DNS server too) DC. Also I created a server server1 and added into the domain. Can I just use DC and server1 to make the cluster? Or do I need to create another server server2 and use server1 and server2 to make my two-node cluster?

I'm new to cluster. Hope you can help me. Thanks.

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up vote 2 down vote accepted

It's not recommended to use a domain controller as a cluster node, and in fact, there are limitations even on standalone SQL Server installations on a DC.

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For testing purposes ONLY it should be OK. For Production, you should never mix SQL Server with any other application.

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