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Performance optimization system in full flash memory array

A flash memory array and performance technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem that the entire array cannot provide services to the outside world

Pending Publication Date: 2020-11-27
BEIJING INST OF COMP TECH & APPL
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  • Application Information

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Problems solved by technology

The disadvantage of this method is that when all arrays are performing garbage collection operations, the entire array cannot provide external services, which is unacceptable for applications that require long-term reliable services

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  • Performance optimization system in full flash memory array
  • Performance optimization system in full flash memory array
  • Performance optimization system in full flash memory array

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Embodiment Construction

[0030] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] The invention relates to a performance optimization system in an all-flash array. Traditional disks have become the main performance bottleneck of large-scale storage systems due to the limitation of their own mechanical rotation. Flash-based SSDs are widely used in personal computers and enterprise storage systems due to their excellent performance and low power consumption. However, because solid-state disks have device characteristics different from magnetic disks, simply applying traditional storage software to solid-state disks cannot give full play to the performance advantages of solid-state disks. If the existing disk array technology is directly applied to the solid state disk, it will aggravate the adv...

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Abstract

The invention relates to a performance optimization system in a full flash memory array, and belongs to the technical field of computer storage. By researching the working principle of a solid-state disk and based on the limitation of the flash memory solid-state disk, the current research situation that the RAID technology is applied to the current solid-state disk array is analyzed. Based on previous research, the access characteristics displayed by the application load are analyzed; the method is based on respective advantages of RAID5 and RAID1. According to the method, an array Hybrid-RAID of RAID5 and RAID1 mixed layout based on the size of a load request is provided; the Hybrid-RAID performs data layout according to read-write dense attributes of user requests and different requestsizes, and responds to external requests in combination with request preferences of bottom-layer RAID5 and RAID1 to different loads. Finally, performance testing is carried out on real equipment, andthe testing result shows that compared with traditional RAID5 and RAID1, the average response time of the Hybrid-RAID scheme is reduced by 40.5% and 35.6% respectively.

Description

technical field [0001] The invention belongs to the technical field of computer storage, and in particular relates to a performance optimization system in an all-flash array. Background technique [0002] With the advent of the big data era, the demand for big data storage and data analysis has brought great challenges to the storage department of enterprises, requiring high concurrency, large capacity, diverse storage methods and efficient storage management capabilities. Traditional mechanical hard drives (Hard Disk Drives, referred to as HDD) are composed of mechanical components such as motors, platters, and magnetic head rockers. Its position access is achieved by moving the magnetic head on the rotating disk, so at least 95% of the time Dissipated in the movement of the components, causing the disk's response time to be severely limited. With the increase of intensive applications, storage systems based on traditional mechanical hard disks can no longer meet the needs...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0607G06F3/061G06F3/0658G06F3/0689G06F3/0688
Inventor 徐晗郦伟宋珺
Owner BEIJING INST OF COMP TECH & APPL