Cannot add existing clustered instance to new server

  • I have a 2 server Windows 2008R2 cluster that has been running 3 instances of SQL Server 2008 and 4 instances of SQL Server 2012 for many months without problems. We added a third server to the cluster and I've been able to add all 4 SQL Server 2012 instances to this server using the 2012 "add a node to an existing SQL Server failover cluster" wizard. When I try to add the SQL Server 2008 instances using the 2008 wizard, only 1 instance appears in the Cluster Node Configuration dropdown (which installs fine). The other 2 instances are not found. Is there a registry, configuration, or AD setting that is missing on this server?

  • did you run a cluster validation report after adding the new node?

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    "Ya can't make an omelette without breaking just a few eggs" 😉

  • Yes, a cluster verification was done and it contained warnings but no errors.

  • can you provide more information, screenshots maybe?

    What does the failover cluster manager view show

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    "Ya can't make an omelette without breaking just a few eggs" 😉

  • I found the problem - at some point these SQL instances must have encountered an error when patching or repairing and a registry key was set to indicate the error. Resetting the key from 2 to 1 solved the problem. The key is:

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Microsoft SQL Server\MSSQL10.xxxxxxxxx\ConfigurationState

  • Awesome!!. Thanks for sharing

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