Failover Clustering in Windows Server

By | November 12, 2019

Windows failover cluster is a group of independent servers that work together to increase the availability and scalability of clustered roles/applications/services.

Clustered servers are connected by physical cables and by software. If one or more of the cluster nodes fail, other nodes begin to provide service. Clustered roles are proactively monitored to verify that they are working properly. If they are not working, they are restarted or moved to another node.

Failover clusters also provide Cluster Shared Volume (CSV) functionality that provides a consistent, distributed namespace that clustered roles can use to access shared storage from all nodes. With the Failover Clustering feature, users experience a minimum of disruptions in service.

Failover Clustering has many practical applications, including:

  • Highly available or continuously available file share storage for applications such as Microsoft SQL Server and Hyper-V virtual machines
  • Highly available clustered roles that run on physical servers or on virtual machines that are installed on servers running Hyper-V

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