Memory system and operating method thereof
AssigneeSK hynix Inc.
InventorJong-Min LEE
Life of this patent
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Abstract
A memory system includes a plurality of memory blocks, first and second queues, and a controller suitable for queuing first victim blocks whose error information value is equal to or greater than a threshold value among the memory blocks in the first queue, queuing second victim blocks whose read count is equal to or greater than a threshold value in the second queue, rearranging a priority order of the first and second victim blocks queued in the first and second queues based on read reclaim values, and performing a read reclaim operation on the first and second victim blocks based on the priority order.
Claims20
A memory system, comprising:
- a plurality of memory blocks;
- first and second queues;
- and
- a controller suitable for queuing first victim blocks whose error information value is equal to or greater than a threshold value among the memory blocks in the first queue, queuing second victim blocks whose read count is equal to or greater than a threshold value in the second queue, rearranging a priority order of the first and second victim blocks queued in the first and second queues based on read reclaim values, and performing a read reclaim operation on the first and second victim blocks based on the priority order.
An operating method of a memory system, comprising:
- queuing first victim blocks whose error information value is equal to or greater than a threshold value among a plurality of memory blocks in a first queue and queuing second victim blocks whose read count is equal to or greater than a threshold value in a second queue;
- rearranging a priority order of the first and second victim blocks queued in the first and second queues based on read reclaim values;
- and
- performing a read reclaim operation on the first and second victim blocks based on the priority order.
Dependencies are inferred from the claim text.