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US Patent 10564902 Dynamic partition allocation for tape file system

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Patent
Patent

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
10564902
Date of Patent
February 18, 2020
Patent Application Number
14967453
Date Filed
December 14, 2015
Patent Citations Received
‌
US Patent 11681437 Dynamic tape storage device data buffer
3
Patent Primary Examiner
‌
Masud K Khan
Patent abstract

A tape drive system that uses a tape cartridge having more than one file storage partition, sometimes herein referred to as “virtual tapes.” The tape file sub-system (which controls tape addressing) is identical to conventional single file storage partition tape cartridges, because: (i) a tape control sub-system controls writing of the multiple virtual tapes on a single tape cartridge, but communicates with the tape file sub-system as if the multiple virtual tapes were actually located on different physical tape cartridges; and (ii) a tape control sub-system controls reading of the multiple virtual tapes from a single tape cartridge, but communicates with the tape file sub-system as if the multiple virtual tapes were actually located on different physical tape cartridges. The multiple virtual tapes stored on a single physical tape cartridge are useful because they help circumvent certain “per tape restrictions” that are inherent in the tape file sub-system.

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