The next release (1.2) will include a web-based admin console. You can easily monitor the status of your installation, edit the UUID mappings, create new volumes, change policies or create MRC backups.
The console also shows the free space per volume and OSD. If you configured the "geographic_coordinates" in your service configuration files, the Google maps overlay will give you a nice overview of your entire installation.
The console .war file is in trunk/contrib/console in our svn.