On the Service Accounts (Clusters) page, specify the username, password and domain name for SQL Server service accounts. You can use one account for all of the services. All service accounts for a failover cluster instance must be domain accounts. Check the Customize for each service account box to specify the Username, Password, and Domain for specific services, selecting the service from the Service list. The account for the SQL Server Agent service must be an administrator for the cluster node. Do not use the same account that was assigned to the Cluster service.