Data seamless migration method and device

Abstract

The invention discloses a data seamless migration method and device; the method comprises the following steps: respectively building main node and backup node shearing memories, and a main node memory zone and a backup node memory zone; migrating memory information in the main node memory zone to the main node shearing memory, so the main node memory information is consistent with the backup node memory information; detecting the main node having a fault, accessing the sharing memory data, and realizing data seamless migration. The invention also discloses a data seamless migration device.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a method and device for realizing seamless data migration. Background technique [0002] Dual-system hot backup is a backup technology to solve the temporary failure of the server. The dual-system hot backup technology uses two servers to back up each other and perform the same service together; when one server fails, the other server can take over the service Tasks, so that without manual intervention, the system can automatically ensure that the system can continue to provide services, avoid long-term service interruptions, and ensure long-term and reliable services of the system. [0003] With the increasing degree of enterprise informatization, enterprises rely more and more on informatization, especially in telecommunications, banking and other industries, and even put forward the requirement that the business cannot be interrupted throughout the year; in order to avoid host h...

AI Technical Summary

Problems solved by technology

[0005] However, this solution has the following disadvantages: First, when the primary node A goes down, the standby node B reads the business data on the mirrored disk partition, and restarts the memory program transmitted during the downtime, resulting in The service switching time to the standby node B takes three to fifteen minutes, and the service switching time is still very long; second, this solution needs to add additional hardware and software on the host computer, the process is complicated, the cost is high, and there are many failure points. If a point failure, the entire system is paralyzed, and even data is lost; third, the real-time performance of data transmission in this scheme is not strong, and the switching time is long, which is easy to cause data loss; fourth, the synchronization data of the master and backup machines is through the internal Ethernet For transmission, the transmission rate is slow. When the Ethernet fails, it will cause the stop of data transmission, interrupt the switch between the main and standby machines, and cause the system to fail to operate normally.

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