A three-tier deployment is commonly used for medium and large farms. In a three tier deployment there is a Web front-end server, an application server (SharePoint services like Excel, Search, etc.), and the database server are installed on different servers or computers.This type of deployment would be used to create a small farm. In a two tiers deployment the SharePoint Server and the database are installed on separate servers.In a single tier deployment the SharePoint Server and the database server are installed on the same server or computer.There are three deployment tiers you can use to create your SharePoint farm to meet your company’s needs: SharePoint 2010 farm can be deployed on a single server or many servers to create different topologies. 4 GB for stand-alone or evaluation installationĨ GB for single server and multiple server farm installation for production use
