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Systems and methods for maintaining data files

  • US 7,860,832 B2
  • Filed: 05/29/2007
  • Issued: 12/28/2010
  • Est. Priority Date: 09/30/2003
  • Status: Active Grant
First Claim
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1. A method for maintaining, in a storage system having a source storage system and target storage system, information from which a set of source files stored on the source storage system can be retrieved, the method comprisingstoring baseline images of one or more source data files in target files of the target storage system, andfor each of a sequence of target storage times:

  • A) dynamically identifying locations in the source storage system where changes have been made since the previous target storage time; and

    B) in response to identifying the locations,i) reading at that target storage time contents that occupy the locations, andii) sending the contents to the target storage system; and

    C) storing the contents in the target storage system together with associations of the contents with the locations.

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