For an FCI, the role will contain an IP address resource, a network name resource, and the SQL Server resources. Failover and failback always act in context of roles. A role contains all of the cluster resources that are required for an AG or FCI. Role A collection of cluster resources managed as a single cluster object to provide specific functionality.įor SQL Server, a role will be either an Always On Availability Group (AG) or Always On Failover Cluster Instance (FCI). A cluster resource can be owned by only a single node at any point in time.
Install Windows Server 2008 Failover ClusteredĬluster resource A physical or logical entity that can be owned by a node, brought online and taken offline, moved between nodes, and managed as a cluster object.Node A server that is participating in a WSFC. Terms and Definitions Windows Server Failover Cluster (WSFC) A WSFC is a group of independent servers that work together to increase the availability of applications and services. SQL Server 2017 takes advantage of WSFC services and capabilities to support Always On availability groups and SQL Server Failover Cluster Instances. In this article APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse A Windows Server Failover Cluster (WSFC) is a group of independent servers that work together to increase the availability of applications and services. Windows Server Failover Clustering with SQL Server. › ► Install Windows Server 2008 Failover Cluster ►