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Synchronous data replication method and device

A technology for synchronizing data and copying methods, which is applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of huge bank losses and irreparable losses, and achieve the effect of ensuring integrity

Active Publication Date: 2015-03-04
INSPUR BEIJING ELECTRONICS INFORMATION IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Today, with the rapid development of computer technology, paper media data is gradually transformed into electronic information. Massive data has spawned cloud computing, big data and large storage systems. Compared with personal systems, the storage capacity, continuity and security of system work are relatively small. Banking systems, power companies, etc. have much higher requirements for data security and system work continuity. If there is a problem with the security and business continuity of the banking system, the loss of the bank is huge, and sometimes the loss is irreparable.

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  • Synchronous data replication method and device

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Embodiment 1

[0036] Embodiment 1. A synchronous data replication method is applied to a system including a primary storage device and a backup storage device, including:

[0037] After the primary storage device receives the write request, if the network is normal, copy the write request, select a logical link according to a predetermined link strategy, send a write request to the backup storage device, and submit another write request to the primary storage device;

[0038] When the primary storage device completes writing and receives a write completion confirmation from the secondary storage device, the write request is completed.

[0039] This embodiment mainly involves two storage devices, a primary storage device and a backup storage device. When there is a data read request, since the main storage device stores the latest data, the data can be read directly from the main storage device without sending a request to the backup storage device to obtain data, and the read request can b...

Embodiment 2

[0067] Embodiment 2. A synchronous data replication device is applied to a system including a primary storage device and a backup storage device, including:

[0068] A replication module, configured to, after the primary storage device receives the write request, copy the write request if the network is normal, and select a logical link according to a predetermined link strategy to send a write request to the secondary storage device, Submit another write request to the primary storage device;

[0069] A confirming module, configured to complete the write request when the writing of the primary storage device is completed and a confirmation of the completion of writing from the backup storage device is received.

[0070] The processing device in this embodiment may be an independent device, or may be integrated in the main storage device as a module in the main storage device.

[0071] In an implementation manner of this embodiment, the copy module can also be used to first s...

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Abstract

The invention provides a synchronous data replication method and device. The method is applied to a system which comprises a main storing device and an auxiliary storing device. The method includes that after the main storing device receives a write request, the write request is replicated if the network is normal, then a logic link is selected according to a preset link strategy to send one write request to the auxiliary storing device and submit the other write request to the main storing device, when write finish of the main storing device is achieved and confirmation of write finish of the auxiliary storing device is received, the write requests are finished. According to the synchronous data replication method and device, the synchronous data replication scheme can guarantee data integrity in the system which comprises the main and auxiliary storing devices.

Description

technical field [0001] The invention relates to the field of storage disaster recovery, in particular to a synchronous data replication method and device. Background technique [0002] Today, with the rapid development of computer technology, paper media data is gradually transformed into electronic information. Massive data has spawned cloud computing, big data and large storage systems. Compared with personal systems, the storage capacity, continuity and security of system work are relatively small. Banking systems, power companies, etc. have much higher requirements for data security and system work continuity. If there is a problem with the security and business continuity of the banking system, the loss of the bank is huge, and sometimes the loss is irreparable. . [0003] Data security should include physical installation and logical security. Logical security is to encrypt the data of the entire banking system, set management permissions, and so on. Physical securit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30H04L29/08
Inventor 张在理孟宪伟
Owner INSPUR BEIJING ELECTRONICS INFORMATION IND