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Data management with modular erase in a data storage system

  • US 9,152,555 B2
  • Filed: 11/15/2013
  • Issued: 10/06/2015
  • Est. Priority Date: 11/15/2013
  • Status: Active Grant
First Claim
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1. A method of data management with modular erase in a data storage system with a non-volatile memory array having an erase block and a target block with the target block in a logical unit separate from the erase block, comprising:

  • performing an erase operation on the erase block, the erase operation having an operation matrix configured for partial erasing of the erase block;

    updating a command status for the erase block;

    enabling an intervening command on the target block, based on the command status indicating an incomplete erase status, with the intervening command updating the command status;

    performing an erase optimization based on the command status;

    performing an additional erase operation based on the erase optimization; and

    updating the command status to an erase complete status based on the additional erase operation.

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