HP StoreOnce is a backup appliance that can reduce the amount of backup data you need to store by up to 95%. The HP StorageWorks D2D Backup Systems with HP StoreOnce deduplication provide disk-based data protection for data centers and remote offices. Automate and consolidate the backup of multiple servers onto a single, rack-mountable device while improving reliability by reducing errors caused by media handling. All HP D2D Backup Systems feature HP StoreOnce deduplication software for efficient, longer term data retention on disk and enabling network efficient replication for a cost-effective way of transmitting data off-site for disaster recovery purposes. The D2D Backup Systems integrate seamlessly into your current IT environment and offer you the flexibility of both virtual tape library and NAS* targets. * CIFS only on legacy systems