Hello Vikas, thanks for your reply. >> On each Webserver is a local brick used as a type of cache. > > Can you explain a bit more about how the local brick is used > and why it's needed? It is just used as another copy of data. I feel like using such a local brick optimizes the performance very much. >> Now when we change a file on a Fileserver. > > Are you changing the file directly on the backend on a fileserver? No, we change file in the mounted directory. So the new files is immediately replicated to the second fileserver. > Vikas > -- > Engineer - http://gluster.com/ > Thanks for your help! Christian