Migrate content into or out of RBS (SharePoint Foundation 2010)
http://technet.microsoft.com/en-us/library/ff628255(v=office.14).aspx This article describes how to migrate content into or out of Remote BLOB Storage (RBS), or to a different RBS provider. After installing RBS and setting a content database to use RBS, all existing content in that database can be migrated into the database's active provider. You use the same Windows PowerShell 2.0 command to migrate content into or out of RBS, or to another RBS provider. When RBS is implemented, SQL Server itself is regarded as an RBS provider. You can migrate content databases at any time, but we recommend that you perform migrations during low usage periods so that this activity does not cause performance degradation for users. Migration moves all content from the specified content database into the storage mechanism of the newly named provider. This operation can be performed on any Web server in the farm. You only need to perform the operation one time on one Web server for each conte...