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Method and memory apparatus for promoting write address incontinuous data storage efficiency

A technology of data storage and storage equipment, which is applied in the field of storage equipment with high data storage efficiency, can solve the problems of low data storage efficiency, long seek time, and cost, and achieve the effect of improving data storage efficiency and reducing seek time

Inactive Publication Date: 2008-08-13
NEW H3C TECH CO LTD
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Problems solved by technology

In this way, the controller in the RAID has to control the repeated seeks of the corresponding physical disks in the RAID during the process of writing the video data packets whose write addresses correspond to different storage areas to the physical disks, thus consuming more seeks. time
[0009] It can be seen that the efficiency of data storage with non-sequential write addresses is low

Method used

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  • Method and memory apparatus for promoting write address incontinuous data storage efficiency
  • Method and memory apparatus for promoting write address incontinuous data storage efficiency
  • Method and memory apparatus for promoting write address incontinuous data storage efficiency

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Embodiment Construction

[0049] 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 with reference to the accompanying drawings and examples.

[0050] figure 2 It is a schematic diagram of an exemplary structure of a storage device used for improving data storage efficiency with non-sequential write addresses in the present invention. Such as figure 2 As shown, in the storage device of the present invention, the RAID includes a controller and a physical disk including multiple storage areas. There is a cache (Cache) between the controller and the physical disk in the RAID, and the Cache mentioned herein refers to a storage medium that does not require a seek, such as a physical memory. Of course, some RAID itself has Cache, in this case, figure 2 The Cache shown is the original RAID, and there is no need to add it.

[0051] In this way, the controller first writes the continuously receiv...

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Abstract

The present invention provides a method for enhancing discontinued data storaging efficiency of addresses writing. In this method, a Cache is between a controller and a physical disk in RAID, the controller writes the opening memory data of different memory regions corresponding to the writing address, that is discontinued data of addresses writing into the cache, then the opening memory data of the different memory regions corresponding to the writing address in the cache is flushed to corresponding memory regions not at all once, and each time only flushes the opening memory data of the storage region which identical to the writing address, in other words, writing address continuous data to greatly reduce seek time of physical disk to enhance the data storage efficiency. The invention also provides a storage device for improving writing address discontinued data storage efficiency.

Description

technical field [0001] The present invention relates to data storage technology, in particular to a method for improving data storage efficiency with non-sequential write addresses and a storage device for improving data storage efficiency with non-sequential write addresses. Background technique [0002] A Redundant Array of Independent Disks (RAID) includes a controller and multiple physical disks. After the controller divides the data to be stored into segments according to certain rules, they are stored in multiple physical disks in the RAID respectively, so as to utilize the power of multiple physical disks. Parallel access and parallel transmission to match the bandwidth to improve the efficiency of data storage. In addition, each physical disk in the RAID also stores redundant data for data recovery, such as mirror data or redundancy check information, thereby improving the reliability of data storage. [0003] Among them, RAID is currently divided into seven levels:...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 侯敏蔡斌
Owner NEW H3C TECH CO LTD
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