介绍了心跳传输机制和iSCSI协议的原理和实现。以成熟的开源软件Hearbeat和UNH iSCSI软件为基础,在Linux操作系统平台上设计和实现了一套在广域网下基于iSCSI技术的高可用存储解决方案,从而为中小企业关键业务提供经济、高可用的存储服务。
Give an introduction to the theory of iSCSI and Heartbeat protocol, and then presents an approach of design and implementation of iSCSI high availability storage solution in WAN, which is based on two open-source projects: Heartbeat and UNH iSCSI.