This paper introduces the new concept of the network data backup, and describes both the demand of the network system for the backup and the design of the scheme.

文章在介绍网络备份新观念的基础上，结合作者所在单位已经实施的网络数据备份工作，阐述了网络系统对备份的要求及备份方案的设计工作。

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This paper introduces the redundancy backup scheme, describes the signal network and data network of redundancy HLR, and describes the redundancy procedure in detail.

本文介绍了移动运营商HLR的容灾备份方案，描述了容灾HLR系统的信令组网和数据组网，最后针对容灾步骤做了重点的介绍。

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This scheme exert ability of hard ware, resolve the bottle-neck of data backup and disaster recovery. Now it runs well.

此方案充分发挥了硬件的性能，解决了计费系统的数据备份和容灾，投入运行后效果良好。

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