Multipath fibre channel (FC) business long distance transmission method based on field programmable gate array (FPGA), and multipath FC business long distance transmission device based on FPGA

Abstract

The present invention relates to a multipath FC business long distance transmission method based on an FPGA, and a multipath FC business long distance transmission device based on the FPGA. When the FC businesses are in long-distance transmission between the locality and a far end, a local response strategy mechanism is used to substitute for a far-end response strategy mechanism, and the FC data frames of DDR2 cache transmission are used to carry out the time sharing storage of the multichannel businesses. The method and the device of the present invention enable the multipath FC businesses to realize the long distance redundancy of more than 3000 KM while not losing the transmission speed, and enable the device transmission bandwidth to be improved to more than 95%; the method and the device of the present invention do not depend on the types of the devices, and can realize the interconnection and tests with the devices of different manufacturers as long as the devices provide the FC1G/2G ports, and the functions of the ports are normal, and under the premise of rate matching; the device and the method of the present invention can match a wavelength division multiplex system to be widely used in the bank, insurance and enterprise data storage backup systems, enable the efficiency of the devices to be improved effectively, and the number of the device terminals of the operators and the power consumption to be reduced, and realize the energy saving and emission reduction.

Description

technical field [0001] The present invention relates to storage area network business, data storage business and DWDM (Dense Wavelength Division Multiplexin, intensive light wave multiplexing) transmission business, specifically a kind of multi-channel FC (Fibre Channel) business based on FPGA (Field Programmable Gate Array) Long-distance transmission method and device. Background technique [0002] Fiber Channel (Fibre Channel, FC) has become one of the mainstream technologies of storage area network (SAN, Storage Area Network) due to its advantages of good scalability, high bandwidth, strong versatility and long transmission distance. The current rate can support 1.0625G , 2.125G, 4.25G, 8.5G. [0003] In recent years, enterprise storage usage has grown dramatically, and there has been greater public awareness of the importance of business continuity and disaster recovery. With the continuous expansion of SAN scale and data security considerations, the servers and data c...

AI Technical Summary

Problems solved by technology

[0008] The existing storage system using FC as the transmission channel has a relatively small number of credits, which can effectively support the transmission of about 20Km without loss of bandwidth. In the off-site backup system (over 200KM is off-site), no distance expansion is required. The effective transmission rate of the storage system using FC as the transmission channel is only about 1% of the theoretical bandwidth, which affects the use of equipment

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