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Method and device for data backup

A data backup and backup technology, which is applied in the field of communication, can solve the problems of reducing the speed of data backup and achieve the effect of increasing the speed

Inactive Publication Date: 2009-05-20
HUAWEI DIGITAL TECH (CHENGDU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]In the prior art, the process of internal data backup of the data in the solid-state disk needs to be realized through data interaction with the cache of the host, which reduces the speed of data backup

Method used

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  • Method and device for data backup

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] The embodiment of the present invention provides a method for data backup, such as figure 1 shown, including the following steps:

[0020] Step 101, receiving a backup command carrying a source logical block address group and a destination logical block address group.

[0021] Wherein, the backup command may be a newly added COPY_BACK command in the ATA (Advanced Technology Attachment, Advanced Technology Attachment) protocol.

[0022] Wherein...

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Abstract

The embodiment of the invention discloses a method and a device for data backup. The method comprises the following steps of receiving a backup commands carrying a source logic-block address set and an objective logic-block address set, storing data in the source logic-block address set to a high-speed cache memory inside a solid-state hard disk according to the backup commands, and storing the data in the high-speed cache memory to the objective logic-block address set. In the embodiment of the invention, as the internal data backup of the solid-state hard disk is realized by use of the high-speed cache memory inside the solid-state hard disk, data interaction with the cache of a host is not needed, so that the speed of data backup is raised.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a data backup method and device. Background technique [0002] Solid-state drives have the advantages of high read and write performance, strong shock resistance, and low power consumption. They are widely used in military, vehicle, industrial control, video surveillance, network monitoring, network terminals, electric power, medical, aviation, navigation equipment and other fields. [0003] In the process of internal data backup of the data in the solid-state hard disk, it is necessary to first cache the data in the source logical block address group to be backed up in the internal cache memory of the solid-state hard disk, and then read the data in the cache memory And write it into the cache of the host, then read the data stored in the cache of the host and write it back to the cache memory inside the SSD, and finally read the data in the cache memory and write it to I...

Claims

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Application Information

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IPC IPC(8): G06F11/14G06F12/08
Inventor 张宗全申立
Owner HUAWEI DIGITAL TECH (CHENGDU) CO LTD