Method and device used for memory equipment management

一种存储设备、存储单元的技术，应用在存储领域，能够解决脆弱状态持续时间长、数据可靠性差、重构时间长等问题，达到缩短重构时间、提高可靠性的效果

Active Publication Date: 2016-08-24
EMC IP HLDG CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the capacity of the storage device grows, the reconstruction time becomes longer and the duration of the fragile state becomes longer, and this makes the data reliability worse
For this reason, how to shorten the reconstruction time and improve the reliability of data is a big challenge

Method used

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  • Method and device used for memory equipment management
  • Method and device used for memory equipment management
  • Method and device used for memory equipment management

Examples

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Embodiment Construction

[0039] Various exemplary embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0040] It should be understood that these exemplary embodiments are given only to enable those skilled in the art to better understand and realize the present disclosure, but not to limit the scope of the present disclosure in any way.

[0041] References herein to "one embodiment," "another embodiment," or "a preferred embodiment," etc., indicate that the described embodiments may include a particular feature, structure, or characteristic, but that each embodiment does not necessarily have to. including that particular feature, structure or characteristic. Moreover, these terms do not necessarily refer to the same embodiment.

[0042]It is also to be understood that the various terms used herein are for the purpose of describing particular embodiments only and are not intended to be limiting of the present disclosure. As used herein...

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PUM

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Abstract

The embodiment of the invention relates to a method and a device used for memory equipment management, and a computer program product. The method comprises the following steps: collecting bad memory cells which need to be reconfigured in the memory equipment; determining the reconfiguration priority level of each bad memory cell in the collected bad memory cells; and on the basis of the determined reconfiguration priority level, scheduling the reconfiguration of the bad memory cells. The device comprises a bad memory cell collector, a priority controller and a reconstruction scheduler, wherein the bad memory cell collector is configured to collect the bad memory cells which need to be reconfigured in the memory equipment; the priority controller is configured to determine the reconfiguration priority level of each bad memory cell in the bad memory cells; and the reconstruction scheduler is configured to schedule the reconstruction of the bad memory cells on the basis of the determined reconfiguration priority level.

Description

technical field [0001] Embodiments of the present disclosure relate to the field of storage, and more particularly to methods and devices for managing storage devices. Background technique [0002] As the capacity of storage devices grows, the protection of data therein becomes worse and worse. The reason is that the increasing capacity of storage devices (such as magnetic disks) results in longer and longer periods of time required to reconstruct them after failure. A longer reconstruction time means a greater risk for data on a storage device, such as a Redundant Array of Independent Disks (RAID). [0003] During the reconstruction period of the storage device, due to the loss of redundant information, data reliability is significantly reduced. The following uses RAID-6 as an example to illustrate the change of data reliability when a disk fails. refer to figure 1 It can be seen that when there is no disk failure, thanks to the existence of redundant information, RAID-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F11/1088G06F2211/1057G06F3/0619G06F3/0647G06F3/0689G06F11/1092
Inventor 吴忠杰邹勇刘子锐易正利吴飞
Owner EMC IP HLDG CO LLC
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