From the course: Windows Server 2019: High Availability

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The importance of a quorum

The importance of a quorum - Windows Server Tutorial

From the course: Windows Server 2019: High Availability

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The importance of a quorum

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- [Instructor] The cluster quorum configuration has a direct effect on the high availability of the cluster for the following reasons. It helps ensure that the failover cluster can start properly or continue running when the active cluster membership changes. Membership changes can occur because of planned or unplanned node shutdown or when there are disruptions in connectivity between the nodes or with the cluster storage. When a subset of nodes cannot communicate with another subset of nodes this is referred to as a split cluster. The cluster quorum configuration helps ensure that only one of the subsets continues running as a cluster. Configuring a witness vote helps the cluster sustain one extra node down when you configure clustering. There are different quorum types and configurations. The first one is node majority where there is no witness. Only nodes have votes. No quorum witnesses configure. The cluster quorum is the majority of voting notes in the active cluster membership.…

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