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Data transmitting method, data receiving method and storage devices

A data sending method and storage device technology, applied in the field of storage, can solve the problems of unreasonable use of data, long time of data replication, low efficiency, etc.

Active Publication Date: 2017-09-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the data used to generate the snapshot data may still exist in the cache, but this part of the data cannot be reasonably utilized. Each copy needs to read the snapshot data in the data volume first, resulting in a longer time for data copying and lower efficiency

Method used

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  • Data transmitting method, data receiving method and storage devices
  • Data transmitting method, data receiving method and storage devices
  • Data transmitting method, data receiving method and storage devices

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Embodiment Construction

[0108] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0109] The data sending method provided by the embodiment of the present invention can be implemented in a storage device. figure 1 A schematic diagram of the system architecture of the data sending method provided by the embodiment of the present invention, such as figure 1 As shown, the production center includes a production host, a connection...

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Abstract

The embodiment of the invention provides a data transmitting method, a data receiving method and storage devices. The methods comprise the steps that the first storage device receives a first write data request sent by a host, and the first write data request carries to-be-written data and address information; a first serial number is added to the to-be-written data and address information, and the to-be-written data and address information are written into a cache, wherein the first serial number is a current time slice serial number; the to-be-written data and address information corresponding to the first serial number are read from the cache; the current time slice serial number is modified for identifying information carried by the follow-up write data request; the to-be-written data and address information are sent to the second storage device. The data copying efficiency can be improved.

Description

[0001] This application claims the priority of the international patent application with the application number PCT / CN2013 / 080203 and the title of the invention "data transmission method, data reception method and storage device" submitted to the Chinese Patent Office on July 26, 2013, the entire content of which Incorporated in this application by reference. technical field [0002] The invention relates to storage technology, in particular to a data sending method, a data receiving method and a storage device. Background technique [0003] Data disaster recovery, also known as remote data replication technology, refers to the establishment of an off-site data system, which is an available copy of local data. When a disaster occurs in the local data and the entire application system, the system has at least one copy of available business-critical data in off-site. [0004] A typical data disaster recovery system includes a production center and a disaster recovery center. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/20
CPCG06F3/065G06F11/2094G06F11/2097
Inventor 欧阳戟邹冶
Owner HUAWEI TECH CO LTD
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