基于iSCSI存储集群的设计与实现  

Design and implementation of storage cluster system based on iSCSI

作　　者：王施人[1] 陕振[2] 张淑萍[2] 毛宇光[1] 

机构地区：[1]南京航空航天大学信息科学与技术学院,江苏南京210016 [2]北京计算机技术及应用研究所,北京100854

出　　处：《计算机工程与设计》2010年第11期2598-2601,共4页Computer Engineering and Design

摘　　要：为了节约成本,提高系统的可用性,通过研究iSCSI与存储集群的特点,提出将iSCSI应用到存储集群中的方案。分析了心跳检测、故障迁移、数据镜像等技术,在设计心跳检测时,通过增加失效点阀值提高检测的正确性,故障迁移利用ARP欺骗原理来完成,数据镜像则使用同步模式来保障数据的一致性。最后实现了一款高可靠、高可用基于iSCSI的存储集群系统,并对存储系统性能进行了测试。According to the characters of iSCSI and storage cluster,a storage cluster system based on iSCSI is proposed,to reduce the cost and promote the availability.By analyzing,three important constitutes should be absolved： heart-beat detection,failover,data mirroring,for continuous services.When the system is designed,a threshord of failure nodes are brought in to promote the correctness in the heartbeat detection,ARP spoof is used to realize the failover module,and the data mirroring taked synchornous mode to keep consistency.At last,a test is performed,after the high availability and strong reliability storage cluster system is realized.

关 键 词：ISCSI 存储集群 心跳检测 故障迁移 数据镜像 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]