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Storage apparatus and method of managing data storage area

  • US 8,108,595 B2
  • Filed: 07/28/2011
  • Issued: 01/31/2012
  • Est. Priority Date: 10/30/2008
  • Status: Active Grant
First Claim
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1. A storage apparatus comprising:

  • a first flash memory device in which an acceptable erase count is limited,a second flash memory device in which an acceptable erase count is lower than that of the first flash memory device, anda controller configured to copy data of a first area in the first flash memory device to a second area in the second flash memory device on the basis of a rewrite frequency of the first area.

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