SQL Server Remote BLOB Store (RBS) is an optional add-on component that lets database administrators store binary large objects in commodity storage solutions instead of directly on the main database server.
RBS can be downloaded from the SQL Server 2008 R2 Feature Pack page. RBS is not included on the SQL Server 2008 R2 installation media, and is not installed by the SQL Server 2008 R2 Setup program.
For more information about RBS, see RBS Resources in this topic.