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Method and apparatus for preventing permanent data loss due to single failure of a fault tolerant array

  • US 20070159897A1
  • Filed: 01/06/2006
  • Published: 07/12/2007
  • Est. Priority Date: 01/06/2006
  • Status: Active Grant
First Claim
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1. A method of avoiding permanent data loss due to a defect in an information storage system, comprising:

  • partitioning a first storage device into at least a first section that is used to store data, and a second section that contains metadata;

    detecting a defective block on the first section of the first storage device; and

    in response to detecting the defective block, reconstructing data that was stored at the defective block to a different block, wherein the data that was stored at the defective block is associated with a stripe of data comprising a number of blocks including at least one non-defective block and wherein the at least one non-defective block is not reconstructed.

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