RBS in sharepoint 2013

Hi,

I am trying to install RBS in sharepoint 2013.

I have followed the technet article and configured it. The tables got created in DB.But when i try to upload any document it says "The URL ‘Shared Documents/filename.docx’ is invalid. It may refer to a nonexistent file or folder, or refer to a valid file or folder that is not within the current Web."

My farm consist of one DB server and one app server.

Do i need to install RBS.exe plug in in DB server as well?

Thanks,

sudan