SQL Server 2012 - Create a cluster for an existing single node.

Hi All,

         We are having a single SQL database server (running sql 2012) in a SharePoint 2013 farm (Farm consists of 1-web server, 1 - app server, 1 - db server). I we are provided with a another similar SQL Server Database server with same configuration, can we add this new one and existing one into a cluster? Please note, existing db server is online and have production data.

Thanks,

Dilip