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Solid state disk bad block query method and device and computer readable storage medium

A solid-state hard disk and query method technology, applied in the computer field, can solve problems such as time-consuming and energy-consuming, complex physical structure, etc., and achieve the effects of reducing space and time waste, accurate query, and improving SSD performance

Pending Publication Date: 2021-06-01
北京浪潮数据技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SSD is a large-capacity storage, which requires multiple nands. If there is a bad block in a certain physical block, the topological physical structure of each nand is complex, and multiple nands make the entire physical structure more complicated. Find bad blocks in various nand particles. block, it takes a lot of time and effort to

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  • Solid state disk bad block query method and device and computer readable storage medium
  • Solid state disk bad block query method and device and computer readable storage medium
  • Solid state disk bad block query method and device and computer readable storage medium

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the above drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a...

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Abstract

The invention discloses a solid state disk bad block query method and device and a computer readable storage medium. The method comprises the steps that in the running process of the solid state disk, when it is detected that bad blocks exist, bits corresponding to the bad blocks are marked on the basis of nand particle parameters of the solid state disk, and a bit marking result is stored in a bitmap. When the bad block query instruction is received, the bitmap is queried according to the target bad block information in the bad block query instruction, and the query result of the target bad block is obtained, the bad block information can be queried efficiently and accurately, and the SSD performance is improved.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a solid-state hard disk bad block query method, device and computer-readable storage medium. Background technique [0002] SSD (Solid State Disk, solid state drive) back-end storage on the server uses computer flash memory device nand particles, and nand particles of different capacities have different physical structures. A nand physical structure can be divided into 1 target, 2 targets, and 4 targets. The target is an independent flash memory with its own chip select signal. Each target can be divided into 1 LUN (LogicalUnitNumber, logical unit number), 2LUN, etc. Each LUN can be divided into a single unit plane, two planes, and so on. Plane is a unit composed of a series of physical blocks, plane0 is composed of odd-numbered physical blocks, and plane1 is composed of even-numbered physical blocks. Each plane has multiple physical blocks such as 1048 and 2096, a...

Claims

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Application Information

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IPC IPC(8): G11C29/44G11C29/04
CPCG11C29/44G11C29/04G11C2029/0409
Inventor 高静
Owner 北京浪潮数据技术有限公司
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