To upgrade servers, shut them down. Install the 1.3 packages (or update if you have the xtreemfs repository configured) and start the servers again. For the clients, unmount all mounted volumes and install (or update) the 1.3.0.
Most important changes in the user-interface:
- mount.xtreemfs has new command line options
- xtfs_stat, xtfs_repl and xtfs_sp have been merged into xtfsutil
- xtfsutil works on files on mounted volumes, not on URLs
- you can use xtfsutil --errors /mount/point to retrieve client error messages