With the development of mobile Internet, the operation of enterprises more and more dependent on the IT architecture, the information system operation stability and reliability requirements of the higher, business continuity is the most important competition. In order to ensure the operation of 7×24 h, in addition to the disaster recovery, also need to develop business continuity planning. To guarantee high availability and continuous operation ability is the key to success of enterprise. Enterprises need to ensure the system, the key applications and data is protected and available, happen downtime or disaster operations can continue to. By exploiting the underlying data replication emergency system and logic replication technology building, switch back to cut the time in minutes in, ensure business continuity, no perception of users.%电信业随着移动互联网的发展，企业运作越依赖于IT架构，对信息系统运作的稳定性和可靠性的要求就越高，业务连续性将是最重要的竞争力。为保证7×24 h运营，除灾难恢复外，还需要制定业务连续综合计划。保证高度可用性和连续运营能力是企业成功的关键。企业需保证系统，关键应用和数据受到保护并处于可用状态，发生停机或灾难后运营可以继续。通过利用底层数据复制技术和逻辑复制技术构建的应急系统，切换回切时长在分钟以内，保障了业务连续性，对用户无感知。
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