Prerequisites for clustering

Windows Failover Cluster relies on shared storage. Make sure you have shared storage with at least two disks: a designated disk for quorum and another designated disk for SQL Server data.

Failover clustering also requires that you use an Active Directory domain.

Before setting up your failover cluster environment, make sure you have the component information as described in "Planning checklist".

Refer to the Microsoft documentation (https://msdn.microsoft.com/en-us/library/ms189910.aspx) for more detailed information on installation requirements for failover clustering.