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Solid-state disk and method for preventing data loss thereof

A solid-state hard disk and data loss technology, applied in the storage field, can solve the problems of write performance loss, simultaneous writing of backup and original value, and capacity drop, etc., to achieve the effects of improving performance, preventing data loss, and improving efficiency

Active Publication Date: 2014-12-17
RAMAXEL TECH SHENZHEN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are three major problems in the first solution: First, due to its inherent attenuation characteristics, the capacitance of the large capacitor will drop sharply after a certain period of use, and may even be less than 1 / 5 of the initial value
The second solution also has a problem: Although this solution can solve all the above problems, the disadvantage is that the backup and the original value are written at the same time, which directly causes the write performance to be compromised, and the write amplification increases, which shortens the life of the SSD.
[0008] In summary, the existing technology for preventing data loss obviously has inconvenience and defects in actual use, so it is necessary to improve it

Method used

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  • Solid-state disk and method for preventing data loss thereof
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  • Solid-state disk and method for preventing data loss thereof

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Embodiment Construction

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0056] see figure 1 , a solid state hard disk 100 is provided in the first embodiment of the present invention, comprising:

[0057] The writing module 10 is used to write the data that needs to be written into the plurality of coupling physical pages in the solid-state hard disk 100 into the corresponding plurality of coupling physical pages in a matrix cross writing manner;

[0058] The multiple coupled physical pages respectively belong to multiple different independent redundant disk array protection areas.

[0059] In this example, the SSD 100 has a unique protection mechanism based on RAID....

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Abstract

The invention provides a solid-state disk and a method for preventing data loss thereof, which are applicable to the technical field of memory. The method includes steps: writing a plurality of data of a plurality of coupling physical pages into the corresponding coupling physical pages respectively in a matrix crossing manner. The coupling physical pages which are required to be written into the solid-state disk belong to a plurality of different independent redundant disk array protecting areas respectively. By the aid of the method, data loss of the solid-state disk is prevented, and the performances of the solid-state disk are improved.

Description

technical field [0001] The invention relates to the field of storage technology, in particular to a method for preventing data loss of a solid-state hard disk and the solid-state hard disk. Background technique [0002] The development of NAND Flash (memory) is tending to have a higher density, so in addition to the continuous update of the process, each Cell will also have more bits, that is, MLC (Multi-Level Cell, multi-layer cell). However, due to the inherent technical characteristics of MLC Flash, data loss due to unexpected power failure has always been the most difficult and serious problem in the development of SSD (Solid State Disk, solid state drive) technology. Especially in enterprise-level products, such errors are usually unacceptable. [0003] Inside the MLC, each cell unit can represent multiple bit values ​​(the common value is 2), and these multiple bit values ​​belong to multiple pages in a block. That is, multiple pages actually share a set of physical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/16
Inventor 刘伟
Owner RAMAXEL TECH SHENZHEN
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