Failover Cluster Is Adding DNS A Record For Cluster Name Pointing To The Secondary Node

Nicholas Talbot 1 Reputation point
2021-03-09T17:10:33.99+00:00

I am seeing an issue where my cluster name will have 2 A records in DNS, one for the active node and one for the other node. There are no failover events in event viewer. This looks to be happening daily. Has anyone else seen this?

Windows DHCP
Windows DHCP
Windows: A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.DHCP: Dynamic Host Configuration Protocol (DHCP). A communications protocol that lets network administrators manage centrally and automate the assignment of Internet Protocol (IP) addresses in an organization's network.
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Windows Server Clustering
Windows Server Clustering
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Clustering: The grouping of multiple servers in a way that allows them to appear to be a single unit to client computers on a network. Clustering is a means of increasing network capacity, providing live backup in case one of the servers fails, and improving data security.
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  1. Xiaowei He 9,866 Reputation points
    2021-03-10T06:23:10.533+00:00

    Hi,

    Would you please provide a screenshot of the Cluster name, like below: (Please remove your privacy information. such as IP address)

    76068-image.png

    And provide the cluster DNS record in DNS server, like below: (Please remove your privacy information. such as IP address)

    76134-image.png

    Generally, the Cluster name A record is the cluster name with the IP address in my first screenshot.

    If your cluster A record is not that, please try to delete the wrong A record and try to offline the Cluster name and bring online the CNO again, the Cluster name A record will be re-register in the DNS server.

    Thanks for your time!
    Best Regards,
    Anne

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