A disk-based system with software that simulates tape cartridges, tape drives, and tape libraries. The system makes disk storage appear as if it were a tape drive or tape library to applications software. Some virtual libraries also include a feature which allows the data on a disk to be written to physical tape for off-site storage. See Physical Library.
Industry's first virtual deduplication appliances for protecting virtual and physical servers using a software-only device—perfect for remote offices.