Tag Archives: Witness

The cluster resource could not be deleted since it is a core resource

The last month, I wanted to change the Witness of a cluster from a Cloud Witness to a File Share Witness. The cluster is a 2-node S2D cluster and as discussed with Microsoft, Cloud Witness should not be used with a 2-node cluster. If the Cloud Witness fails (for example when subscription has expired), the cluster can crashes. I’ve experienced ...

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Understand Failover Cluster Quorum

This topic aims to explain the Quorum configuration in a Failover Clustering. As part of my job, I work with Hyper-V Clusters where the Quorum is not well configured and so my customers have not the expected behavior when an outage occurs. I work especially on Hyper-V clusters but the following topic applies to most of Failover Cluster configuration. What’s ...

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