Disk data backup system and method thereof

A data backup and disk technology, applied in memory systems, electrical digital data processing, instruments, etc., can solve the problems of software and hardware compatibility, no PCI expansion port, local bus is not open, etc., to achieve easy operation and cost saving , save the effect of complex operations

Inactive Publication Date: 2008-04-23
HUAWEI TECH CO LTD
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Problems solved by technology

[0011] In practical application, the above scheme has the following problems: RAID technology has hardware and software compatibility issues and potentially increases system instability, and RAID technology cannot be used in some specific systems to achieve data backup
[0012] One of the main reasons for this situation is that first of all, RAID technology uses PCI bus, SCSI bus or local bus to g

Method used

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  • Disk data backup system and method thereof
  • Disk data backup system and method thereof
  • Disk data backup system and method thereof

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Embodiment Construction

[0041] 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.

[0042] Usually CPU is connected with hard disk through ATA interface, realizes the access of data, and the scheme of the present invention realizes the expansion of one ATA interface to several ATA interfaces by adding data backup circuit, thereby utilizes the ATA interface that expands to realize the backup of data.

[0043] The solution of the present invention will be described below in conjunction with a specific embodiment of the present invention. In this specific embodiment, one ATA interface is extended to two ATA interfaces and data backup is realized.

[0044] The structure of the disk data backup system of a specific embodiment of the scheme of the present invention is as follows figure 2 .

[0045] The disk data backup system includes: a central pro...

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Abstract

The invention realizes data backup function based on multiple mirrored hard discs by using only one ATA interface so that operation of data backup is independent from operation system on host. The magnetic disc backup system includes general hard disc controller, several hard discs in identical specification, and data backup circuit module. The said general hard disc controller provides a high technical attachment unit interface, and connection between attachment unit interface and the data backup circuit module. The data backup circuit module extends a high technical attachment unit interface into several identical high technical attachment unit interfaces. The said attachment unit interface determines correctness of data read from several said hard discs. Each extended high technical attachment unit interface is connected to a hard disc.

Description

technical field [0001] The invention relates to a data backup technology, in particular to a data backup technology using a disk. Background technique [0002] In the past ten years, with the development of computer technology, the processing speed of the central processing unit (Central Processing Unit, referred to as "CPU") has increased many times, and the speed of the CPU has entered the GHz era; the access speed of the memory has also increased significantly. , the operating frequency of the memory has developed from 66MHz to 100MHz or even 133MHz, and there have been dynamic random access registers (Dynamic Random Access Memory, "DRAM") to double-rate dynamic random access memory (Double Data Rate DRAM, referred to as " DDR DRAM") leap, doubling the access speed of DRAM without increasing the operating frequency. [0003] The data storage device is mainly a hard disk, and the access speed is only increased several times, forming a bottleneck of the computer system and...

Claims

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Application Information

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IPC IPC(8): G06F12/00G06F13/14
Inventor 牛仁朝张明郭晓川
Owner HUAWEI TECH CO LTD
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