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A system storage optimization method based on Device Mapper

An optimization method and system storage technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem of high cost in large-scale deployment, and achieve optimized data storage efficiency, low power consumption, and reduced The effect of power consumption

Inactive Publication Date: 2019-02-26
ANHUI JIYUAN SOFTWARE CO LTD +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the new generation of storage media SSD has greatly improved the read and write speed, it is expensive for large-scale deployment.

Method used

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  • A system storage optimization method based on Device Mapper

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing:

[0017] Such as figure 1 It shows a system storage optimization method based on Device Mapper. When the client initiates a data request, the device Mapper technology is used to use the solid-state storage as the cache of the mechanical hard disk. When the user space initiates a read operation, it first goes to the cache to find out whether Data, if there is, it will be returned to the user space, if not, it will be read from the mechanical hard disk. When the user space initiates a write operation, it is first written to the cache, and then written to the mechanical hard disk when the system is idle, including the following steps:

[0018] S1: Establish the mapping of logical devices composed of solid-state hard disks and mechanical hard disks. Use Device Mapper technology to mix solid-state hard disks and mechanical hard disks into one logical device. By default (configura...

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Abstract

The invention relates to a system storage optimization method based on Device Mapper, When the client initiates the data request, the solid state storage is used as the cache of the mechanical hard disk by the Device Mapper technology. When the user space initiates the read operation, the data in the cache is searched first, if there is any, the data is returned to the user space, and if there isno data, the data is read by the mechanical hard disk. When the user space initiates a write operation, it writes to the cache first, and then to the mechanical hard disk when the system is idle. Theinvention fully utilizes the low power consumption characteristic of the solid-state hard disk, on the one hand, the power consumption of the mechanical hard disk can be reduced by reducing the use frequency of the mechanical hard disk, on the other hand, the energy consumed for completing the same workload is reduced by improving the work efficiency, the data storage efficiency is optimized, andthe hardware cost of the data storage device is saved.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a method for optimizing system storage based on Device Mapper. Background technique [0002] With the development of big data technology, the traditional mechanical hard disk-based storage method is increasingly unable to meet the needs of the current data center development, especially in distributed databases and other scenarios that are highly sensitive to system I / O. I / O is often bottleneck of the entire system. If the efficiency of system I / O can be improved, the overall system efficiency can be improved. Although the new generation of storage medium solid-state hard disk has greatly improved the read and write speed, it is expensive to deploy on a large scale. Contents of the invention [0003] The purpose of the present invention is to provide a system storage optimization method based on Device Mapper, which can reduce the energy consumed to complete the same wor...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0604G06F3/0625G06F3/0631G06F3/064G06F3/0685
Inventor 范叶平万涛李玉操李节王志宏侯彦杰马冬杨德胜郭瑞祥尚守卫李翔宇张地刘小明汤晓君赵林孙奉林郭政汪鹏周盼张锐钱婧张子珩
Owner ANHUI JIYUAN SOFTWARE CO LTD
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