What is a SharePoint Server 2010 Remote BLOB Storage?
Remote BLOB Storage (RBS) is an add-on feature pack for Microsoft SQL Server 2008. Remote BLOB Storage in SharePoint Server 2010 and SharePoint Foundation 2010 moves the storage of binary large objects (BLOBs) from database servers to commodity storage solutions. If the content databases in Microsoft SharePoint Server 2010 are 4 gigabytes (GB) or larger, consider using Remote BLOB Storage as part of your data storage solution.
By default, Microsoft SQL Server stores BLOB data in its databases. As a database