TfsConfig prepareClone /sqlInstance: /databaseName: /notificationUrl: /usesqlalwayson Prepares an existing configuration ...

TfsConfig prepareClone /sqlInstance: 
                       /databaseName:
                       [/notificationUrl:]
                       [/usesqlalwayson]
                    
            Prepares an existing configuration database for cloning.

            The UseSqlAlwaysOn option should be used if your databases are
            on a Sql Server High Availability AlwaysOn Availability Group.  
            This option sets MultiSubnetFailover in the connection string.