How to Check if SQL Server Instance is Clustered

To check if SQL Server Instance is Clustered, right-click on SQL Server instance and choose 'Properties' from in SQL Server Management Studio:

sql server properties in ssms

In the 'Properties' window check the 'Is Clustered' property:

sql server is clustered property

Another way to Check if SQL Server Instance is Clustered is to execute the following query that will return a value 1 for Clustered or 0 for a Standalone instance:

SELECT CONVERT(char(20), SERVERPROPERTY('IsClustered'))

sql server is clustered property query