论述了一种全新的系统容灾保护方法，它脱离了传统基于数据保护的容灾保护思路，通过复制包括数据状态以及服务运行状态在内的全系统状态，并引入并行恢复的思想，最终达到了无论系统毁坏程度如何，都能保证服务即时恢 复的目的。同时，与传统技术相比，该技术还可独立于具体设备和应用，容易做到容灾资源的共享从而节省了容灾系统的建设成本。

The paper describes a new system protection method which is used for disaster recovery. It abandons the traditional data protection based DR(disaster recovery) achieves, replicates the whole system states, including data states together with service running states, and further introduces the method of parallel recovery to restore the interrupted services instantly. Compared with traditional techniques, the method can be independent from specific devices and applications. Different systems can share a unique DR system which is resource-saving.