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Method for achieving layered storage and copy of data of storage system

A storage system and data technology, which is applied in the field of layered storage and replication of storage system data, can solve problems such as high price and capacity, achieve free flow, reduce system resource consumption, and design simple and effective effects

Inactive Publication Date: 2013-05-15
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its high price and limited capacity make many IT decision makers hesitant

Method used

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  • Method for achieving layered storage and copy of data of storage system
  • Method for achieving layered storage and copy of data of storage system
  • Method for achieving layered storage and copy of data of storage system

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Embodiment Construction

[0015] Referring to the accompanying drawings, the content of the present invention will be described with a specific example to realize the process of this system structure.

[0016] As described in the summary of the invention, the architecture of the present invention mainly includes: a data segment management module (1) and a data layering module (2).

[0017] In a typical configuration environment, the data segment management module (1) linearly divides high-speed storage devices and low-speed storage devices into N areas, among which M areas are high-speed storage device areas (Mfigure 1 As shown, first update the count field of the read and write hit area to indicate the read and write frequency of this area, and then determine the data storage location of this linear area through dest_devid and dest_start_addr, and direct the data read and write requests to the actual storage area, realizing data replay Orientation function.

[0018] The data layering module (2) start...

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Abstract

The invention provides a method for achieving layered storage and copy of data of a storage system. The method achieves that the storage system can automatically copy the data from a high-speed high-cost storage to a low-speed low-cost storage; or when required, the data are automatically copied from the low-speed low-cost storage to the high-speed high-cost storage. According to the method, the data are layered according to access frequency degree, data which are accessed frequently are stored in a high-speed high-cost storage medium containing a solid state disk, and data which dot not be accessed frequently are stored in a high-speed high-cost storage medium containing a high-capacity serial advanced technology attachment (SATA) state disk, so that use rate and disk array performance of a high-speed storage device are effectively improved, and total ownership cost of the disk is reduced. The method for achieving the layered storage and copy of the data of the storage system is effective and simple in design, and capable of achieving the fact that the data flow freely on different storage mediums according to data access frequency under the circumstance that system resource consumption is reduced.

Description

technical field [0001] The invention relates to the field of computer applications, in particular to a method for realizing layered storage and duplication of data in a storage system. It is used to realize the free flow of data on different storage media according to the frequency of data access. Background technique [0002] Since the advent of SSD, solid-state drives have experienced the popularity from special markets such as medical and military markets to half of the civilian market. With the deepening of SSD applications, this largely solves the short-board effect of computer performance caused by hard drives, and at the same time injects new vitality into the slow-growing storage industry. Because solid-state drives have no moving parts, are extremely durable, generate little heat, and perform better than most spinning hard drives, they are quickly gaining supporters around the world. But many IT decision makers are hesitant because of its high price and limited ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 杨帆
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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