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METHODS AND APPARATUS FOR ARCHIVING DIGITAL DATA

  • US 20090132775A1
  • Filed: 11/19/2007
  • Published: 05/21/2009
  • Est. Priority Date: 11/19/2007
  • Status: Active Grant
First Claim
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1. A method for managing a backup of files stored on a storage system and archived on a content addressable storage (CAS) system and duplicated on a backup storage system, the method comprising:

  • for each archiving operation performing the operations;

    copying the files for archiving from the storage system onto the CAS to generate archived files;

    maintaining a write protect in the storage system until a backup operation in the CAS system has been performed, thereby preventing any modifications of the files;

    once a backup operation has been performed in the CAS system so as to generate duplicate files, deleting the files from the storage system.

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