Memory system and operation method thereof
AssigneeSK hynix Inc.
InventorEujoon Byun
Life of this patent
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Abstract
A memory system may include a nonvolatile memory device comprising a first area and a second area having a higher data I/O operation speed than the first area, and a controller suitable for performing a first read operation on hot data having a hot property, among data stored in the first area. The controller may control the nonvolatile memory device to copy the hot data into the second area during the first read operation, and access the hot data copied in the second area, when a second read operation on the hot data is requested after the first read operation.
Claims12
A memory system comprising:
- a nonvolatile memory device including a first area and a second area, wherein a data I/O operation speed of the second area is higher than a data I/O operation speed of the first area;
- and
- a controller suitable for:
- performing a first read operation on hot data having a hot property among data stored in the first area,
- controlling the nonvolatile memory device to copy the hot data into the second area during the first read operation, and
- accessing the hot data copied in the second area when a second read operation on the hot data is requested after the first read operation,
- wherein the controller is further suitable for:
- performing an error correction operation on the copied hot data;
- and
- transmitting the corrected hot data to the host during the second read operation.
A memory system comprising:
- a nonvolatile memory device including a first area and a second area, wherein a data I/O operation speed of the second area is higher than a data I/O operation speed of the first area;
- and
- a controller suitable for:
- performing a first read operation on hot data having a hot property among data stored in the first area,
- controlling the nonvolatile memory device to copy the hot data into the second area during the first read operation, and
- accessing the hot data copied in the second area when a second read operation on the hot data is requested after the first read operation,
- wherein the nonvolatile memory device further comprises a buffer suitable for temporarily storing data read from the first and second areas, before transferring the read data to the controller, and
- wherein the controller controls the nonvolatile memory device to copy the hot data, which is read from the first area and temporarily stored in the buffer, into the second area during the first read operation.
An operation method of a memory system which includes a nonvolatile memory device including a first area and a second area having a higher data I/O operation speed than the first area, the operation method comprising:
- performing a first read operation on hot data having a hot property among data stored in the first area;
- copying the hot data into the second area during the first read operation;
- and
- accessing the hot data copied in the second area when a second read operation for the hot data is requested after the first read operation,
- performing an error correction operation on the copied hot data during the second read operation, and
- transmitting the corrected hot data to the host.
Dependencies are inferred from the claim text.