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DEFECT MANAGEMENT USING MUTABLE LOGICAL TO PHYSICAL ASSOCIATION

  • US 20090055620A1
  • Filed: 08/21/2007
  • Published: 02/26/2009
  • Est. Priority Date: 08/21/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • assigning a set of logical block addresses (LBAs) from a logical space to physical block addresses (PBAs) in a physical space;

    in conjunction with a transfer of data to physical blocks at individual PBAs in the physical space, newly associating individual LBAs of the set of LBAs to the individual PBAs in the physical space; and

    upon detecting a defect in a physical block at an individual PBA in the physical space, designating the defective physical block as not safe to use.

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