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Copy process adjustment method and device

A technology for copying process and adjusting device, applied in the storage field, can solve the problems that copy heartbeat messages cannot be sent in time, affect copy performance and functions, and have high administrator requirements, so as to avoid insufficient use of copy bandwidth, avoid serious congestion and The effect of packet loss

Active Publication Date: 2014-08-06
MACROSAN TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is up to the administrator to set a reasonable copy sending window, which has high requirements for the administrator; if the parameter setting is unreasonable, it will affect the performance and function of the copy, for example, the copy heartbeat message cannot be sent in time, etc.

Method used

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  • Copy process adjustment method and device
  • Copy process adjustment method and device

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Experimental program
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Embodiment Construction

[0020] Please refer to figure 1 , the production center and the disaster recovery center are usually connected through a wide area network, and the wide area network is characterized by a complex and changeable environment. When the network environment of the WAN changes, for example, when the WAN link is congested, or a switch / router in the network fails, it may cause the original relatively high-speed link to suddenly become a low-speed link. This situation requires the administrator to lower the copy sending window, otherwise it will only lead to aggravated link congestion. One possible improvement solution is to periodically detect the status of the WAN link, and dynamically adjust parameters according to the status of the WAN link. However, the effect of this method is still unsatisfactory. First, the detection of the WAN link needs to be redeveloped on the basis of the existing communication protocol, and second, the detection results have certain unreliability. For ex...

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PUM

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Abstract

The invention provides a copy process adjustment method and a copy process adjustment device. The method comprises the following steps of A, initiating copy source equipment to perform copying, and turning to a step B; B, starting a timer with a preset timing length, and counting a data transmission parameter Psent and a copy capacity parameter Psucc of the copy source equipment within a current timing length; C, after the timer is started, continuing to transmit a copy command to copy destination equipment by using a copy transmission window stored in the copy source equipment; D, in case of timeout of the timer, judging whether the ratio of Psent / Psucc reaches a first preset threshold value or not, enlarging the copy transmission window stored in the copy source equipment if the ratio of Psent / Psucc does not reach the first preset threshold value, and turning to the step B. According to the method and the device, the situation of serious congestion and packet loss caused by the continuous transmission of massive data in case of deterioration of a copy bandwidth can be effectively avoided, and the situation that the copy bandwidth under a good condition cannot be fully utilized can also be effectively avoided.

Description

technical field [0001] The present invention relates to the field of storage technology, in particular to a copy process adjustment method and device. Background technique [0002] Remote replication can transmit the data in the production center to the disaster backup center through a remote link (such as IP or FC), so that when the production center fails, it can be restored through the data in the disaster backup center. [0003] In common data center data protection solutions, remote replication is a typical technical solution. Through remote replication, the administrator can transmit the data in the production center to the disaster backup center (disaster recovery center) through a remote link (such as IP or FC), so that when the production center fails, the data in the disaster recovery center can be to recover. figure 1 It is a typical remote replication solution. In this solution, the storage device in the production center is used for daily business operations, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14H04L29/08
Inventor 龚飞上官应兰
Owner MACROSAN TECH