title: Is there any scalable open source file storage systems?
body: <p>It is interesting  what software are using companies like dropbox, rapidshare, hotfile, and other to manage huge amount of files? Is there any open source system. I took a look on gridFS  which is build on mongo-db. It looks like this is not the best choice because of speed (comparing to nginx). Or am i wrong?</p>
  
  <p>I want system which can scale infinitely. By plugging servers in to the system. At list to 100 TB.</p>