A dual-system hot backup method based on arbitration disk mechanism
A dual-system hot backup and dual-system hot backup technology is applied in the direction of response error generation, redundancy in hardware for data error detection, etc. Judging the effect of accurate and stable services
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[0015] combined with Figure 1-4 The technical solution of the present invention is described in detail.
[0016] See attached figure 1 , the entire dual-system hot standby system consists of two servers and one storage node, the two servers are respectively NodeA and NodeB, and the two servers are connected to the storage node through optical fibers. Divide a piece of disk space on the storage node as an arbitration area, and only allow specific processes to read and write to it, while the data generated by real-time services is stored in other partitions, that is, this partition is only used for arbitration, not for storage applications. The active node (one of NodeA and NodeB) and the backup node (the other of NodeA and NodeB) in the system regularly read and write to the arbitration area, and the backup node perceives the current work of the active node by judging a specific status bit state. When the arbitration area is controlled by the active node, the backup node wi...
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