IBM called its format the 3480 (after the 3480, the one product that used it) and designed it to meet the demanding requirements of its mainframe products. Although the physical tape was nominally the same size, the technologies and intended markets were significantly different and there was no compatibility between them. In the mid-1980s, IBM and DEC put this kind of tape into a single reel, enclosed cartridge. Half-inch (12.7 mm) magnetic tape on open reels has been used for data storage since the 1950s, starting with the IBM 7-track and later IBM 9-track. ![]() LTO is widely used with small and large computer systems, especially for backup. Upon introduction, LTO Ultrium rapidly defined the super tape market segment and has consistently been the best-selling super tape format. The ninth generation of LTO Ultrium was announced in 2020 and can hold 18 TB in a cartridge of the same physical size. The standard form-factor of LTO technology goes by the name Ultrium, the original version of which was released in 2000 and stored 100 GB of data in a cartridge. ![]() Hewlett Packard Enterprise, IBM, and Quantum control the LTO Consortium, which directs development and manages licensing and certification of media and mechanism manufacturers. Linear Tape-Open ( LTO) is a magnetic tape data storage technology originally developed in the late 1990s as an open standards alternative to the proprietary magnetic tape formats that were available at the time.
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