基于非共享存储的系统高可用集成方案的实现

随着铁路信息化的普及深入，计算机设备提供可靠及时的信息服务不可或缺，计算机软件与硬件均无法避免发生故障，这些故障极有可能导致应用服务的终止而危害铁路运输安全生产。利用第三方高可用性软件在不购置共享存储的情况下，实现生产系统双机热备高可用性，并做到主备机的实时数据镜像，既保障生产系统安全稳定运行，又大幅降低企业的硬件采购和运维成本。

System high availability integration scheme based on unshared storage

With the popularization of railway informationization, the use of computer equipment to provide reliable and timely information services is indispensable, computer software and hardware are unable to avoid failure, and termination of these failures is likely to lead to application service and harm of railway transportation safety production. By using the third party high availability software, this article implemented the high availability of the dual hot standby in the production system without sharing the shared storage, achieved real time data mirroring of host and standby computer. It not only ensured the safe and stable operation of the production system, but also greatly reduced the cost of hardware procurement and operation and maintenance of the enterprise.