SQL Server Failover Cluster Installation
Failover Clusters offer seamless Uptime and Availability. We are able to execute a variety of services and applications on failover clusters. We can generally execute database applications, DHCP servers, Hyper V virtual machines, and VM replicas. Two nodes (servers), a shared network, and shared storage make up a standard failover cluster.
Windows Server Failover Cluster configuration
At least one node of your server cluster needs to be setup for Microsoft Cluster Service (WSFC). SQL Server Enterprise, SQL Server Business Intelligence, or SQL Server Standard must all be used in conjunction with WSFC. With up to 16 nodes, failover clusters are supported by SQL Server Enterprise. Two-node failover clusters are supported by SQL Server Business Intelligence and SQL Server Standard.
Two functions used by WSFC Cluster Manager to check the availability of the SQL Server resource are exported by the resource DLL for the SQL Server service. See Failover Policy for Failover Cluster Instances for further details.
The IsAlive check must allow WSFC to confirm that the failover clustered instance is active. For this, a trusted connection must be used to connect to the server.