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Storage system and data protection method thereof

A storage system and data technology, the redundancy applied in the operation is used for data error detection, response error generation, input/output to the record carrier, etc. The effect of avoiding life and reducing wear and tear

Active Publication Date: 2015-09-02
BEIJING FORTUNET INFORMATION & TECH
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  • Description
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AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a storage system and its data protection method aiming at the problems of shortening the lifespan of solid-state storage modules due to write amplification and frequent writing of check blocks in existing storage systems

Method used

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  • Storage system and data protection method thereof
  • Storage system and data protection method thereof
  • Storage system and data protection method thereof

Examples

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specific Embodiment

[0113] As a specific embodiment of the storage system data protection method provided by the present invention, it includes the following steps:

[0114] Step S100, when data is written into the solid-state storage module, control the data to perform RAID calculation to generate verification block data.

[0115] Step S200, detect the amount of data. When the amount of data is greater than or equal to the stripe width of the solid-state storage module, execute step S300; when the amount of data is smaller than the stripe width of the solid-state storage module, execute step S400.

[0116] Step S300, controlling the data of the verification block to be written into the solid-state storage module.

[0117] Step S400, controlling the data of the verification block to be written into the backup module.

[0118] Here, it should be noted that the solid state storage module can be a solid state disk, and the backup module can be a hot spare disk. In the following embodiments, the sol...

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Abstract

The invention discloses a storage system and a data protection method thereof. The storage system comprises a plurality of solid-state storage modules, a detection module, a control module and a backup module. The solid-state storage modules form an RAID (redundant array of independent disks), used for subjecting data to RAID calculation to generate check area block data when data are written into the solid-state storage modules. The detection module is used for detecting quantity of the data. The control module comprises a first control unit and a second control unit; the first control unit is used for controlling the check area block data to be written into the solid-state storage modules when the quantity of the data is higher than or equal to stripe width of the solid-state storage modules; the second control unit is used for controlling the check area block data to be written into the backup module when the quantity of the data is lower than the stripe bandwidth. By adding the backup module to integrate frequent writing of the check area block data, unnecessary loss of the solid-state storage modules is reduced, and the lives of the solid-state storage modules are prolonged.

Description

technical field [0001] The invention relates to the field of computer storage systems, in particular to a storage system and a data protection method thereof. Background technique [0002] With the emergence of solid state drives (Solid State Drives, solid state drives), the performance of computer storage systems has been greatly improved, and by combining computer storage systems with RAID (Redundant Array of Independent Disks, Redundant Array of Independent Disks) technology , effectively improving the reliability and security of data stored in computer storage systems. [0003] However, by combining the storage system with the RAID technology, since the check blocks calculated by the RAID need to be written frequently, this makes the solid-state storage modules (such as: solid-state disks) in the computer storage system store the check blocks in the RAID. Blocks have many times more writes than data blocks, shortening the life of solid-state memory modules. [0004] At...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F11/14
Inventor 陈杰
Owner BEIJING FORTUNET INFORMATION & TECH
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