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Method and system to archive data

  • US 7,577,689 B1
  • Filed: 06/15/2005
  • Issued: 08/18/2009
  • Est. Priority Date: 06/15/2005
  • Status: Active Grant
First Claim
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1. A computer implemented method to archive data, the computer implemented method comprising:

  • receiving original data for archiving in a first format;

    converting the original data into N shares and storing each of the N shares at one of N repositories;

    constructing a secondary copy of the original data in a second format, the second format being an archive suitable format;

    combining the original data and the secondary copy of the original data into archive data;

    converting the archive data into shares using secret sharing;

    distributing the shares to a plurality of repositories, the distributing including storing each share at one of the plurality of repositories; and

    checking at a predetermined interval that at least K shares and a safety-factor number of further shares are recoverable from the N repositories, the at least K shares used to recover a document associated with the original data.

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