Solid state disk management method and solid state disk
A management method and technology of solid-state hard disks, which are applied in electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of large space, large loss of space for solid-state hard disks, occupation of calibration data, etc., and reduce the demand, the effect of improving the efficiency and quality of reading and writing, and improving data protection and management capabilities
Pending Publication Date: 2021-11-02
MAXIO TECH HANGZHOU LTD
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However, due to the small size of the RAID stripe group, the existence of the parity data occupies a large space, and the space lost by the solid-state hard disk is relatively large.
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[0040] The invention will be described in more detail below with reference to the accompanying drawings. In each of the drawings, the same components are represented by similar reference numerals. For the sake of clarity, the various parts in the drawings are not drawn. In addition, certain well-known parts may not be shown.
[0041] The present invention is described below based on the embodiments, but the present invention is not limited to these examples. Some specific detail portions are described in detail in the detailed description of the invention. The description of these detail portions can also be fully understood by those skilled in the art. In order to avoid obscuring the substances of the present invention, well-known methods, processes, processes, components, and circuits are not described in detail.
[0042] Unless the context clearly requires, "including", "including", "including", etc., "including", including, "including", etc. Meaning. In the description of the ...
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The invention discloses a solid state disk management method and a solid state disk, the solid state disk comprises a controller and a flash memory, the flash memory comprises a plurality of DIEs, and the controller executes the following operations for each DIE: dividing the plurality of DIEs into a plurality of virtual DIEs; establishing a plurality of RAID stripe groups by taking the plurality of virtual DIEs as a benchmark; according to the length of the RAID stripe group, establishing a mapping relationship between a logic address and a physical address of to-be-stored data; and storing data in the flash memory and accessing the flash memory according to the mapping relationship. According to the solid state disk, one DIE is divided into a plurality of virtual operation units, then the RAID stripe group is established, the length of the stripe group is changed, the space occupied by verification data is saved, and the data protection capability is improved.
Description
Technical field [0001] The present invention relates to the field of data storage, and more particularly to a management method and a solid state drive of a solid state drive. Background technique [0002] Solid state drives (SSD, Solid State DRIVES) are stored hard drives made with solid state electronic memory chips, mainly consisting of controllers, storage media, and cache units. Since it has the advantages of fast, low power consumption, low noise, noise, etc. [0003] At present, the most mainstream solid state drive is stored in the storage medium, in order to avoid problems such as bits such as particle wear, high temperature environment, etc., there will be decoding circuits inside the controller of solid state drives (ECC) Code or LDPC code) for data recovery and error correction processing. However, when the Flash level is relatively poor or the end of life, and some application scenarios for data correctness, the decoding circuit cannot fully meet the correctness of d...
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IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0619G06F3/0689G06F3/0644
Inventor 蔡全陈正亮王琛銮骆小敏蔡勤世
Owner MAXIO TECH HANGZHOU LTD