Controller for managing bad blocks, storage device, and method for operating storage device
By generating replacement die recommendation information and full-plane interleaving operation feasibility information in the controller of the storage device, the problem of degradation of interleaving performance when managing bad blocks in the prior art is solved, and efficient bad block replacement and data storage are achieved.
CN119690714APending Publication Date: 2025-03-25SK HYNIX INC
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Patent Information
- Application Number
- CN202411343282.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-25
- Filing Date
- 2024-09-25
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
When existing storage devices manage bad blocks, it is difficult to maintain interleaving performance, affecting the efficiency of data storage and retrieval.
Method used
By implementing the generation and use of replacement die recommendation information and full-plane interleaving operation feasibility information in the controller, the replacement block is determined and the bad block is replaced while maintaining the interleaving performance.
Benefits of technology
Effectively manage bad blocks, maintain the interleaving performance of data storage devices, and improve the efficiency of data storage and retrieval.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to a controller for managing bad blocks, a storage device and a method for operating the storage device. According to the present technology, a storage device capable of managing bad blocks while maintaining interleaving performance may include: a data storage device including a plurality of dies connected to a channel, each of the dies including a plurality of planes capable of performing a plane interleaving operation, each of the planes including a plurality of storage blocks; and a controller configured to, when a bad block appears in a target die among the plurality of dies, determine a replacement die corresponding to the target die among the dies based on the replacement die recommendation information, and control the data storage device to replace the bad block with an initial block included in the replacement die based on information on whether a planar interleaving operation is feasible.
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