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Mixed file system based on different storage media

A file system and storage medium technology, applied in the direction of file system, file system type, data processing input/output process, etc., to achieve the effect of reducing read and write time, improving read and write speed, and high utilization rate

Active Publication Date: 2014-06-04
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to improve the problem of extra writing in the prior art and increase the speed of modifying metadata and updating data, the present invention proposes a new hybrid storage structure, combining non-volatile small-grained addressable media with non-volatile large-scale Granularly addressed media as hybrid storage, and a new file system is proposed for this hybrid storage structure

Method used

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  • Mixed file system based on different storage media
  • Mixed file system based on different storage media
  • Mixed file system based on different storage media

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0027] At first, some nouns and terms among the present invention are explained:

[0028] Large granularity and small granularity: Large granularity is generally the size of a page or block; small granularity is generally not much different from the structure of a metadata, for example, it can be 128Byte, which is much smaller than the size of a page or block; large granularity can be read and w...

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Abstract

The invention discloses a mixed file system based on different storage media. The storage media comprise non-volatile small-granularity addressing media and non-volatile large-granularity addressing media, and the two kinds of media are addressed according to the unified sequence. The non-volatile small-granularity addressing media are used for storing metadata of the file system, and the non-volatile large-granularity addressing media are used for storing data of the file system. The file system calls different granularities of reading or writing for different address ranges under different situations. According to the mixed file system, large data volume reading and writing and small data volume reading and writing are allocated to the corresponding media according to different situations, the reading and writing speed is improved, and the storing efficiency of the file system is improved. The storage space is fully utilized, superfluous redundancy does not exist, additional I / O is reduced, and reading and writing performance is improved. The mixed file system has the high reliability, expandability and I / O speed.

Description

technical field [0001] The invention belongs to the technical field of computer storage systems, and more specifically relates to a hybrid file system based on different storage media. Background technique [0002] In the computer storage subsystem, due to the different read and write access delays of different storage media, multi-level storage levels are often provided in the computer architecture. A storage medium with a larger storage capacity has a longer access time. At present, magnetic storage technology is usually used to achieve large-capacity storage, which has a large read and write delay and a large read and write granularity. When the file system accesses the mass storage as a peripheral device, it will consume a lot of time and reduce the overall performance. [0003] In order to improve performance, a lot of research has been done in the field of storage. The emergence of solid-state drives has caused a wave. In recent years, a series of hybrid storage sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F3/061G06F3/0685G06F16/18
Inventor 曹强万胜刚吴思钱璐谢长生
Owner HUAZHONG UNIV OF SCI & TECH
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