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ISO/IEC 22051:2002

Current Date published:

Information technology — Data interchange on 12,7 mm, 448-track magnetic tape cartridges — SDLT1 format

ISO/IEC 22051:2002 specifies the physical and magnetic characteristics of magnetic tape cartridges, using magnetic tape 12,65 mm wide so as to provide physical interchange of such cartridges between drives. It also specifies the quality of the recorded signals, the recording method and the recorded format, thereby allowing data interchange between drives by means of such cartridges.

The linearly recorded format, called Super Digital Linear Tape 1 (SDLT 1), has 448 tracks. It uses a combination of magnetic and optical technologies known as Laser-Guided Magnetic Recording (LGMR). The back surface of the tape presents optically detected servo marks.

The format is derived from the DLT Format. It provides for a capacity of 110 Gbytes of uncompressed user data, or typically 220 Gbytes of compressed user data.

Together with a standard for volume and file structure this document provides for full data interchange between data processing systems.

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Related Information

Similar Standards

  • BS 4783-8:1994

    Storage, transportation and maintenance of media for use in data processing and information storage, Recommendations for 4 mm and 8 mm helical scan tape cartridges

  • BS 5769-1:1979

    Specification for magnetic tape cassette and cartridge labelling and file structure, for information interchange, Label standard version 1

  • BS 7080-1:1989

    Guide to construction and use of 6.30 mm (0.25 in) magnetic tape cartridge for data interchange, using GCR recording at 394 ftpmm(10000 ftpi), 39 cpmm (1000 cpi), Mechanical, physical and magnetic properties

  • BS 7080-2:1989

    Guide to construction and use of 6.30 mm (0.25 in) magnetic tape cartridge using GCR for data interchange, recording at 394 ftpmm(10 000 ftpi), 39 cpmm (1 000 cpi), Streaming mode

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ISO/IEC 22051:2002

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