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Static state attrition balancing method, device and system

A static loss and equalization technology, applied in the field of communication, to achieve the effect of static loss equalization

Active Publication Date: 2009-04-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both storage media have erasing and writing life problems: SLC is about 100,000 times, and MLC is about 10,000 times
[0005] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: the operating unit of the wear leveling technology for the internal storage medium of the solid-state hard disk is the rewritable block of the flash memory, and only the storage medium inside the solid-state hard disk is worn out. balanced
In the current solid-state hard disk storage system, there is no technology to perform loss leveling based on the different characteristics of different hard disk types in units of solid-state hard disks.

Method used

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  • Static state attrition balancing method, device and system
  • Static state attrition balancing method, device and system
  • Static state attrition balancing method, device and system

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part 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.

[0026] An embodiment of the present invention provides a method for static wear leveling, which is used to implement static wear leveling in an SSD (Solid State Disk, solid state drive) storage system including different types of solid state drives.

[0027] Such as figure 1 As shown, it is a flowchart of a method for static wear leveling according to an embodiment of the present invention, including:

[0028] Step S101, acquiring the write oper...

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Abstract

The embodiment of the invention discloses a method, device and system for balancing static loss. The method includes the following steps: obtaining the writing operation frequency of a data unit and the type of an HD where the data unit is currently stored; comparing the writing operation frequency of the data unit with a preset writing operation frequency threshold when a solid HD memory system meets a static balance starting condition and the solid HD memory system at least comprises two HD types; confirming the HD type for storing the data unit according to the comparing result and the type of an HD where the data unit is currently stored. The embodiment realizes balanced static loss in the solid HD memory system which comprises an SLC solid HD and an MLC solid HD.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a method, device and system for static loss equalization. Background technique [0002] There are two types of storage media for SSDs: SLC (Single Level Cell, single-level storage unit) and MLC (Multi Level Cell, multi-level storage unit). MLC technology enables a single storage unit to store twice the amount of data. Both storage media have the problem of erasing and writing life: SLC is about 100,000 times, and MLC is about 10,000 times. If the maximum erasable number of times is exceeded, the erasable block of the flash memory will become a bad block. In order to prevent an erase block from being over-erased so that it reaches the maximum number of erasable times before other erase blocks, the erase operations should be evenly distributed among each on the erase block. Therefore, how to evenly write data into each rewritable block of flash memory particles a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F12/02
Inventor 陈云昊徐君
Owner HUAWEI TECH CO LTD