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A virtual tape library (VTL) is a data storage virtualization technology used typically for backup and recovery purposes. A VTL presents a storage component (usually hard disk storage) as tape libraries or tape drives for use with existing backup software.
Subsequently, tape libraries became physically automated, and as such are sometimes called a tape silo, tape robot, or tape jukebox. These are a storage devices that contain one or more tape drives , a number of slots to hold tape cartridges , a barcode reader to identify tape cartridges, and an automated method for loading tapes (a robot).
NetVault Backup is a cross-platform backup and recovery software product. It can be used to back up and recover data and applications in physical and virtual environments from one central management interface. eWEEK wrote that NetVault's broad platform support is its “primary strength.” For example, NetVault has been ported to Mac OS X.
Virtual Tape Library (VTL) a storage device that appears to be a tape library to backup software, but actually stores data by some other means. A VTL can be configured as a temporary storage location before data is actually sent to real tapes or it can be the final storage location itself.
A tape drive is a data storage device that reads and writes data on a magnetic tape. Magnetic-tape data storage is typically used for offline, archival data storage. Tape media generally has a favorable unit cost and long archival stability. A tape drive provides sequential access storage, unlike a hard disk drive, which provides direct access ...
Some tape cartridges, notably LTO cartridges, have small associated data storage chips built in to record metadata about the tape, such as the type of encoding, the size of the storage, dates and other information. It is also common for tape cartridges to have bar codes on their labels in order to assist an automated tape library. [27]