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Storage method and device

A storage device and target storage technology, applied in the computer field, can solve the problems of failure of concurrency mechanism, restricting full use of storage device bandwidth, and inability to fully utilize the concurrency mechanism of solid-state disks, etc., to achieve the effect of improving efficiency and reducing bandwidth constraints.

Active Publication Date: 2021-01-29
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way of exclusive storage device processing data prevents the internal concurrency mechanism of the solid state disk from being fully exploited.
In addition, the data sent to different storage devices can only be processed sequentially by each device, and the concurrency mechanism between multiple devices is almost invalid.
The order of data access severely restricts the ability to fully utilize the bandwidth of storage devices

Method used

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  • Storage method and device
  • Storage method and device
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Examples

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Embodiment Construction

[0034] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0035] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0036] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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PUM

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Abstract

The invention relates to a storage method and device. The method comprises the steps of obtaining a sequence metadata sequence corresponding to an ordered data stream and an unordered data stream according to the ordered data stream; carrying out bypass storage on the sequential metadata sequence, and storing a plurality of data in the disordered data stream to buffer areas of a plurality of storage devices in parallel; when a data persistence instruction is received, performing persistence storage on the data in the buffer area of the at least one storage device according to the sequential metadata sequence. According to the storage method provided by the embodiment of the invention, the sequence metadata sequence of the ordered data stream and the unordered data stream consistent with the ordered data stream data can be determined, and bypass storage is carried out on the sequence metadata sequence, so that a correct data storage sequence is ensured. And for disordered data streams,parallel storage can be performed, so that a concurrent mechanism of the storage device is brought into full play, the data storage efficiency is improved, and the restriction on the bandwidth of thestorage device is reduced.

Description

technical field [0001] The present disclosure relates to the field of computers, and in particular to a storage method and device. Background technique [0002] The data access sequence describes the specific sequence in which data is stored in the persistent medium, and plays an important role in the storage system. For example, the log in the file system and the transaction in the database rely on the specific access sequence of data to ensure the correctness and consistency of the storage system. [0003] Flash memory (Flash Memory) is an electronic erasable programmable memory, which is the main component of Solid-State Drive (SSD). The flash memory chip (package) inside the solid state disk is connected to the flash memory controller through different channels (Channel). In a flash memory chip, multiple flash memory particles (die) are packaged, and each particle can execute instructions independently. Each granule contains multiple flash memory planes, and each flas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/061G06F3/0638G06F3/0679
Inventor 舒继武陆游游廖晓坚
Owner TSINGHUA UNIV