Method and device for realizing synchronous data in double machine heat backup
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Publication Date
- 2006-11-08
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The present invention relates to dual-system hot backup technology, and more specifically, the present invention relates to a method and device for realizing data synchronization between dual-system hot backup servers. Background technique
[0002] Dual-machine hot backup technology is a high fault-tolerant technology combining software and hardware. Usually, a dual-system hot backup system is composed of two servers and an external shared disk array or a disk array card (Redundant Array of Independent Disks, RAID) existing in the two servers and corresponding dual-system hot backup software. It is the working machine, and the other server is the backup machine. When the system is in normal operation, the working machine provides support for the information system, and the backup machine monitors the operation of the working machine (the working machine also monitors whether the backup machine is normal).
[0003] In practical applications, the dual-m...