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.
Claims10
An operation method of a memory system, comprising:
- determining an access mode of an area in which data corresponding to a logical address is stored, when a read request with the logical address is received from a host;
- performing an error correction operation to data from a first area when the data is stored in the first area having a first access mode and a second area having a second access mode;
- and
- determining whether an error of the data from the first area is successfully corrected and transmitting the error-corrected data to the host when the error of the data from the first area is successfully corrected,
- performing an error correction operation to data from the second area when the error of the data from the first area is not successfully corrected;
- and
- transmitting the error-corrected data from the second area to the host.
An operation method of a memory system, comprising:
- determining an access mode of an area in which data corresponding to a logical address is stored, when a read request with the logical address is received from a host;
- performing an error correction operation to data from a first area when the data is stored in the first area having a first access mode and a second area having a second access mode;
- and
- determining whether an error of the data from the first area is successfully corrected and transmitting the error-corrected data to the host when the error of the data from the first area is successfully corrected,
- determining a storage area of hot data, before the read request is received;
- and
- copying the hot data, stored in the second area, into the first area through a first copy operation when the hot data is stored only in the second area.
Dependencies are inferred from the claim text.