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Method for storing data using globally distributed storage system, and program and storage medium for allowing computer to realize the method, and control apparatus in globally distributed storage system

  • US 20040064633A1
  • Filed: 09/22/2003
  • Published: 04/01/2004
  • Est. Priority Date: 09/30/2002
  • Status: Abandoned Application
First Claim
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1. A method for storing data by a computer dividing redundant data into a plurality of volumes, distributing and storing the volumes in a plurality of scattered storage units through a network, comprising:

  • computing an evaluation value indicating desirability of each of the scattered storage units to be used based on a bandwidth, a communications cost, and a physical distance between a node to which a write request is issued and a storage unit; and

    selecting a plurality of storage units as an optimum storage set from among the scattered storage units based on the evaluation value.

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