【摘要】 提出了一种Linux平台上远程逻辑卷复制系统的设计方案,论述了它的系统结构及实现方法。该系统不依赖于特殊的存储设备或网络,在复制过程中通过保持主、从两端逻辑卷上数据块的更新顺序来保证数据一致性。系统支持同步和异步两种复制模式,可以适合不同的应用环境,为实现通用、经济的远程数据容灾系统提供了可能。更多还原

【Abstract】 This paper presents a design of remote logical volume replication system on Linux,discusses its’ architecture and implement method.The system is independent on specific storage devices,and can maintain data consistency by keeping block update order between primary and backup volumes.Both synchronous and asynchronous replication modes are supported,which made the system suitable for variable application environments.The system made it possible to build general and economical disaster tolerant computer system.更多还原