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DATA STORAGE DEVICE AND OPERATING METHOD THEREOF

  • US 20160371195A1
  • Filed: 10/27/2015
  • Published: 12/22/2016
  • Est. Priority Date: 06/22/2015
  • Status: Active Grant
First Claim
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1. A data storage device comprising:

  • a plurality of memory regions; and

    a processor suitable for mapping a plurality of logical regions onto the plurality of memory regions, wherein the plurality of logical regions form n number of logical zones, each including k number of logical regions, and are grouped into k number of logical region groups based on their offset values,wherein the processor, when receiving a write request for a target logical region, increases a first access count stored in a first entry of a first table, corresponding to a logical zone including the target logical region, and increases a second access count stored in a second entry of a second table, corresponding to a logical region group including the target logical region.

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