Backup and restore technology comprising a backup engine, one or more client backup modules coupled to the backup engine via a backup protocol, and a backup database coupled to the backup engine, the backup database including a set of clusters, the set of clusters forming one or more backups, wherein...http://www.google.de/patents/US7900002?utm_source=gb-gplus-sharePatent US7900002 - Multi-client cluster-based backup and restore
