Storage Layer
The Content Deployer deploys incoming content from the Content Manager to the Storage Layer, which stores the content in the Content Data Store, which is a database. You can extend the Storage Layer to enable storage to any medium. You configure storage in the Storage Layer configuration file. In this file, you can specify configuration strings as hardcoded values or as parameters.
Content Data Store supports Microsoft SQL Server and Oracle databases.
The Storage Layer uses reference counting to keep track of the relations between pieces of content.