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Protection sector and database used to validate version information of user data

  • US 10,642,816 B2
  • Filed: 08/29/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 08/29/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a write command with user data targeted to a data sector of a non-volatile memory;

    committing the user data to be stored in the data sector, protection information bytes of the data being stored together with the data in the data sector, the protection information bytes including both a cyclic redundancy code and version information;

    copying the protection information bytes to a distilled protection sector that stores protection information from multiple data sectors, wherein the distilled protection sector has a same size as the data sector, and wherein the distilled protection sector is appended with a second cyclic redundancy code and second version information;

    receiving a read request for the data; and

    in response to the read request, validating the protection information bytes in the data sector against the copy of the protection information bytes in the distilled protection sector.

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