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Wear leveling method for cross-point memory with multiple data temperature zones

A technology of wear leveling and memory, which is applied in the field of storage systems and can solve problems such as unavailability of the storage system, adverse effects and degradation of the overall performance of the storage system, etc.

Active Publication Date: 2020-08-07
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The presence of worn cells typically degrades the overall performance of a flash memory system when some cells are effectively worn out while others are relatively unworn
In addition to degrading the performance associated with the worn cells themselves, the overall performance of the storage system can be adversely affected when there is not a sufficient number of non-worn cells to store the required data
In general, when a critical number of worn cells are present in a storage system, the storage system may be considered unavailable even though many other cells in the flash system are relatively unworn

Method used

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  • Wear leveling method for cross-point memory with multiple data temperature zones
  • Wear leveling method for cross-point memory with multiple data temperature zones
  • Wear leveling method for cross-point memory with multiple data temperature zones

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Embodiment Construction

[0027] First, it should be understood that although illustrative implementations of one or more examples are provided below, the disclosed systems and / or methods can be implemented using any number of technologies, regardless of whether the technologies are currently known or existing . The present invention should never be limited to the illustrative embodiments, drawings and techniques described below, including the exemplary designs and implementations illustrated and described herein, but can be within the scope of the appended claims and their equivalents Modified within the full scope.

[0028] A conventional storage system on a mobile device includes various different types of memory, and each memory stores different types of data according to the frequency of access operations such as reading and / or writing to the data. Mobile devices usually include: random access memory (random access memory, RAM), such as dynamic RAM (dynamic RAM, DRAM) or static RAM (static RAM, SRAM...

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Abstract

A method of improving wear leveling in a cross-point (cross-point, X3D) memory executed by a processor, comprising: detecting a trigger event by a processor coupled to the X3D memory, wherein the X3D memory includes a first portion of memory units and a second portion of storage units; in response to detecting the trigger event, the processor migrates data stored in a first storage unit of the first portion of storage units to the last storage unit of the first portion of storage units cells adjacent to a storage unit, and the processor migrates data stored in a first storage unit of the second portion of storage units to a storage unit adjacent to a last storage unit of the second portion of storage units .

Description

[0001] Cross-application of related applications [0002] This application requires the title of the invention submitted by Xiangyu Tang, Ken Hu, Xiaobing Lee, and YunxiangWu on August 24, 2016 to be "Wear-Leveling Method for Cross-Point Memory for Multiple Data Temperature Zones" Data Temperature Zones)" U.S. Provisional Patent Application No. 62 / 379,228 and the title of the invention filed by Xiangyu Tang, Ken Hu, Xiaobing Lee and Yunxiang Wu on September 1, 2016 is "Cross Point Memory for Multiple Data Temperature Zones" “Wear-Leveling Method for Cross-Point Memory for Multiple Data Temperature Zones” in the US Provisional Patent Application No. 62 / 382,581 and the title of the invention filed on January 31, 2017 as “Multiple Data Temperature Zones” "Wear-Leveling Method for Cross-Point Memory for Multiple Data Temperature Zones" is the priority of the prior application of U.S. Utility Model Application No. 15 / 420,696, each of these prior applications And all the entire content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/00
CPCG06F2212/1036G06F2212/7211G06F12/12G06F12/0246G06F2212/7201G06F12/02G06F12/122
Inventor 唐翔宇胡肯李晓兵吴云翔
Owner HUAWEI TECH CO LTD