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Efficient data storage system

  • US 7,065,619 B1
  • Filed: 12/20/2002
  • Issued: 06/20/2006
  • Est. Priority Date: 12/20/2002
  • Status: Expired due to Term
First Claim
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1. A method for storing data comprising:

  • receiving a data stream comprising a plurality of data segments; and

    determining whether one of the plurality of data segments has been stored previously using a summary in a low latency memory;

    in the event that the data segment is determined not to have been stored previously, assigning an identifier to the data segment; and

    confirming whether the data segment has been stored previously, wherein confirming whether the data segment has been stored previously includes;

    checking a cache; and

    in the event that checking a cache results in a cache miss, confirming whether the data segment has been stored previously further includes checking in a segment database.

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