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Method of accessing storage device including nonvolatile memory device and controller

  • US 10,503,638 B2
  • Filed: 03/09/2017
  • Issued: 12/10/2019
  • Est. Priority Date: 04/21/2016
  • Status: Active Grant
First Claim
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1. A method of accessing a storage device including a nonvolatile memory device and a controller comprising:

  • writing, in the nonvolatile memory device, (i) user data, (ii) a first logical address pointing to the user data, and (iii) a second logical address pointing to the user data, in a storage space pointed to by the first logical address of the nonvolatile memory devicewherein the user data is update data that updates previous data written in the nonvolatile memory device, andwherein the second logical address is a logical address of the storage space of the nonvolatile memory device in which the previous data is written,wherein the writing user data includes,writing the user data into the storage space corresponding to the first logical address, andwriting the first logical address and the second logical address into a second storage space of the nonvolatile memory device corresponding to a third logical address.

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