Storage device and operating method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsKyungduk LEE, Youhwan KIM, Jooyong PARK, Hoseong AHN
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Abstract
Disclosed is a storage device which includes a nonvolatile memory device that includes a plurality of memory blocks and stores or reads data, and a controller that controls the nonvolatile memory device and executes a data input/output request provided from a host. Each of the plurality of memory blocks includes a first sub-block and a second sub-block, and the controller determines whether data of the second sub-block are degraded, based on the number of times of an operation performed in the first sub-block.
Claims20
A storage device comprising:
- a nonvolatile memory device including a plurality of memory blocks, the nonvolatile memory device configured to store and read data;
- and
- a controller configured to control the nonvolatile memory device and to execute a data input request and a data output based on requests provided from a host,
- wherein each of the plurality of memory blocks includes at least a first sub-block and a second sub-block, and
- the controller is configured to determine whether data of the second sub-block are degraded, the determination based on a number of times an operation is performed in the first sub-block.
A storage device comprising:
- a memory device including a plurality of memory blocks;
- and
- a controller configured to control the memory device,
- wherein each of the plurality of memory blocks includes a plurality of sub-blocks, and
- wherein the controller is configured to determine whether data of a sub-block, from among the plurality of sub-blocks, are degraded based on a number of times an operation is performed on another sub-block from among the plurality of sub-blocks.
An operating method of a storage device, comprising:
- checking an operation requested to be performed in a first sub-block;
- changing, when the operation is one of preset operations, a value, representing a number of times the operation is performed in associated with the first sub-block, in a table;
- and
- determining whether data of a second sub-block are degraded based on the number of times the operation associated with the first sub-block is performed,
- wherein the first sub-block and the second sub-block are separate sub-blocks included in a same block.
Dependencies are inferred from the claim text.