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Data management for a data storage device with zone relocation

  • US 9,424,864 B2
  • Filed: 07/02/2014
  • Issued: 08/23/2016
  • Est. Priority Date: 07/02/2014
  • Status: Active Grant
First Claim
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1. A Data Storage Device (DSD), comprising:

  • at least one media for storing data; and

    a controller configured to;

    logically divide at least a portion of the at least one media into a plurality of zones by dividing logical block addresses for the at least one media into ranges of logical block addresses;

    identify zones of the plurality of zones with access counts greater than or equal to a threshold, wherein the access count for each of the identified zones indicates a number of times data in the zone has been read or written; and

    relocate data from at least one of the identified zones to at least one destination zone on the at least one media so that the relocated data is in closer physical proximity to other data from at least one other identified zone.

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