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METHOD OF MANAGING, WRITING, AND READING FILE ON TAPE

  • US 20170125061A1
  • Filed: 01/13/2017
  • Published: 05/04/2017
  • Est. Priority Date: 07/11/2014
  • Status: Active Grant
First Claim
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1. A file system including a tape drive, comprising:

  • means for, when a file is to be written onto the tape, detecting, using software which has a detection function for duplicate data, whether another file including data identical to data of the file already exists on the tape;

    means for, when the other file exists on the tape, updating a first index of the other file;

    means for, after the file is written, adding meta-information including a data starting position and a size of the written file on the tape to the first index and writing in an index partition;

    means for creating or updating a second index including meta-information including a data starting position and a size of the written file on the tape; and

    means for writing the created or updated second index in an index partition on the tape.

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