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A copy process adjustment method and device

A technology of replication process and adjustment device, applied in the field of storage, can solve the problems such as failure to send replication heartbeat messages in time, affecting replication performance and functions, and high administrator requirements, so as to avoid insufficient use of replication bandwidth, avoid serious congestion and other problems. The effect of packet loss

Active Publication Date: 2017-08-25
MACROSAN TECH
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  • Summary
  • 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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  • A copy process adjustment method and device

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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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Abstract

The present invention provides a copy process adjustment method and device, wherein the method includes: step A, the copy source device starts a copy and then goes to step B; step B, starts a timer with a preset timing duration, and counts the current timing duration Copy the data sending parameter Psent of the source device and the copy capacity parameter Psucc; step C, use the copy sending window saved inside the copy source device to continue sending the copy command to the copy target device after the timer is started; step D, After the timer times out, it is judged whether the ratio of Psent / Psucc reaches the first preset threshold, if not, the copy sending window saved inside the copy source device is increased; then go to step B. The present invention can not only effectively avoid the situation of severe congestion and packet loss caused by continuously sending a large amount of data when the replication bandwidth deteriorates, but also effectively avoid the situation that the replication bandwidth cannot be fully utilized when the replication bandwidth is in good condition.

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 Patents(China)
IPC IPC(8): G06F11/14H04L29/08
Inventor 龚飞上官应兰
Owner MACROSAN TECH