| Network storage industry is now at home in its infancy, with an enormous market potential. SAN architecture is one of the three mainstream architectures, but also the largest market potential of a model of architecture. February 11, 2003, IETF (Internet Engineering Task Force) adopted the iSCSI (Internet SCSI) standard. iSCSI is initiated by IBM, Cisco, co-sponsored technical standard, after a three-year version of the 20 continued to be refined, IETF finally recognize. With iSCSI technology improving, the data block-level storage applications become more prevalent, common storage resourcse, data sharing capabilities greatly enhanced, and more easy to managed. With the Gigabit and ten Gigabit Ethernet WAN sophisticated as well as the development of Ethernet, IP storage is bound to its cost-effective, versatile, no geographical restrictions on the rapid development advantages, iSCSI technology united SCSI, TCP / IP, the common Network Storage to create a new situation.In this thesis, I am personally involved in iSCSI target module in Huawei Symantec OceanStor Series storage array development. Depth analysis of the iSCSI protocol and iSCSI target working principle, design a more distinct separation of architecture. this architecture in the scalability, testability, high performance and other aspects of the objectives of the traditional architecture. Throughout the development process, in addition to the realization of their own iSCSI protocol-related functions, as well as other modules and systems of interactive features, but also done a lot of different starter iSCSI host system compatibility of the design work. ISCSI target device through the development of methods of summing up the field of network storage for the new iSCSI initiator and target the development of a reference device. At present, the software modules have been with OceanStor Series storage arrays to be in the market a wide range of applications, by virtue of superior performance and stability unanimous acclaim. |
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