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Method for backup data

A technology of data and repeated steps, which is applied in the field of copying materials, can solve the problems of reducing the speed of copying, the number of times and the distance of the read-write head moving, etc., and achieve the effect of shortening the copying time

Inactive Publication Date: 2007-12-26
COPYSTAR BACKUP & STORAGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the structure of the file is quite fragmented and scattered, the number and distance of the read-write head movement will also increase, which will undoubtedly reduce the speed of copying

Method used

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Examples

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Embodiment Construction

[0021] In order to describe the structure and characteristics of the present invention in detail, the following preferred embodiments are now described as follows in conjunction with the accompanying drawings:

[0022] First, a blank storage medium 10 is prepared, as shown in FIG. 1 . The storage medium 10 shown in FIG. 1 is an optical disc, and of course it can also be other large-capacity storage media, such as: floppy disk (floppy disk), hard disk (hard disk), digital audio-visual disk (DVD), flash memory (flash) and other nonvolatile solid-state storage devices (nonvolatile solid-state storage device), magnetic tape (tape) and other similar devices and its combination.

[0023] A base data (ground data) 12 is selected and repeatedly written to all data-storable areas in the blank storage medium 10, as shown in FIG. 2 . The size of the base data 12 can be one sector or multiple sectors (521-2048 bytes). The content of the basic data 12 can be generated by random numbers, ...

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Abstract

A method for copying data includes preparing a source data media with a numbers of effective data and a numbers of base data, fetching one batch of data from source data media and setting size of fetched data to be as the same as base data, comparing fetched data with base data and copying data to at least one object media if two compared data are not the same or otherwise not carrying out copy operation, fetching next batch of data and repeating above said steps till data in copy region of source data media is completely copied onto object media.

Description

technical field [0001] The present invention relates to data duplication, in particular to a method for duplicating data. Background technique [0002] Generally, when copying media, the easiest and fastest way is to copy all the data in the media to another media. Taking the general read only disk as an example, when preparing the source data medium, all the data will be concentrated as much as possible because the problem of future writing is not considered. When this type of media is copied, of course the copied materials are all valid. [0003] However, for some random access media, many blank areas are reserved in order to add or delete data therein, so a file may be stored in the media in a fragmented manner. Such media usually have a management area and a data area, in which information related to the operating system and file system is recorded in the management area, such as partition table, active program area, and file allocation table. table, FAT), etc. The d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B20/10G11C7/00
Inventor 王松荣邱泰庆曹世强
Owner COPYSTAR BACKUP & STORAGE
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