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Storage controller and data erasing method for storage device

  • US 8,566,642 B2
  • Filed: 01/10/2011
  • Issued: 10/22/2013
  • Est. Priority Date: 09/19/2008
  • Status: Expired due to Fees
First Claim
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1. A storage controller configured to allow a storage device to input and output data, the storage controller comprising:

  • a memory; and

    a processor configured to;

    carry out a data erasing process for erasing the data stored in the storage areas by writing erasing data of a first size in the storage areas;

    manage a state of the progress of the data erasing process;

    select a second size of data, among a plurality of sizes managed on the memory of the storage controller, based on the state of the progress of the data erasing process; and

    change the size of the erasing data from the first size to the selected second size.

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