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US 2016/0098214 A1Published application
Data storage device and operating method thereof
AssigneeSK hynix Inc.
InventorsSe Hyun KIM, Joong Seob YANG, Eui Jin KIM, Jong Min LEE
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Abstract
A data storage device includes a nonvolatile memory apparatus suitable for accessing a target region corresponding to an access command, and a processor suitable for calculating a first hash value corresponding to the target region based on a first hash function, and updating an access count that is indexed by the first hash value.
Claims20
A data storage device comprising:
- a nonvolatile memory apparatus suitable for accessing a target region corresponding to an access command;
- and
- a processor suitable for calculating a first hash value corresponding to the target region based on a first hash function, and updating an access count that is indexed by the first hash value.
A data storage device comprising:
- a nonvolatile memory apparatus including a plurality of regions corresponding to a single hash value;
- and
- a processor suitable for managing a common access count of the plurality of regions,
- wherein the access count is indexed by the hash value.
1 more element
A method for operating a data storage device, comprising:
- in response to an access command, accessing a target region among a plurality of regions which correspond to a single hash value;
- and
- increasing an access count that is indexed by the hash value.
Dependencies are inferred from the claim text.