Design And Implementation Of Dual-Redundant Storage Server Based On IP-SAN

With the improvement of processors' computing ability and the continuous development of network technology,there was an exponential increase in the amount of data.In order to achieve the high availability of storage system in commercial field,all kinds of storage architecture have been put forward to meet the needs of huge amounts of data:DAS,NAS,SAN,etc.The traditional storage architecture can well meet the requirements for storage devices in military field.The communication reconnaissance system's requirement is different from enterprises' and individuals'.The system reliability and availability requirements are stricter.Traditional network storage technology can no more meet the corresponding high availability requirements.This article describes the detailed hardware and software design based on the IP-SAN architecture.Double redundant storage server provides storage service through iSCSI,and has a mature troubleshooting mechanism.When designed the hardware,we ensure the high reliability of the system based on high-speed signal integrity theory.And the high-speed signal channel is simulated and optimized to realize the stable transmission of high speed signal.At the same time,the electromagnetic compatibility of the module is optimized to meet requirements of the national army.When designed the hardware,we installed and optimized the data synchronization module,the system state management module,the iSCSI initiator and target detector module and Web management module.Then the system can meet the requirement in read and write data rate,fault switch time and condition monitoring.Through the design of hardware and software.we ensure the high stability and high performance of the system.