实时卷复制协议中的异常处理机制研究

当存储备份系统从基于文件系统发展到基于卷的复制时，很多问题应运而生。实时性要求更是使得异常处理机制成为卷复制系统中一个关键的环节。详细分析了实时卷复制协议，并针对该协议实时、基于卷的特点，在保证数据一致性的基础上，提出一套错误处理框架。它的实用性在原型系统上得到了验证。

Research on Exception Handling in Real-time Volume Replication Protocol

Many issues occur while storage backup system comes into the era of volume- based replication from the previous file-based. The demand of real-time characteristic makes exception handling a crucial part in volume replication system. This paper analyses volume replication protocol in detail, and constructs an exception handling framework. The framework integrates itself with the realtime and volume- based feature of the protocol and can guarantee the consistency of the data replicated. Its practicability has been validated on prototype system.