Data Center

The cloud data centers are the infrastructure of cloud computing networks. The continuous penetration of cloud computing business has stimulated the construction of super data centers. The cloud infrastructure is mainly composed of switches and servers. Fiber optic cables and optical transceivers, or active optical cables and direct attach cables are used for the connection. The large scale of cloud data centers will greatly increase the usage of optical transceivers and the requirements to transmission distance, which will increase the usage ratio of single mode optical transceivers.

In the cloud data centers, the explosive growth of the traffic is driving the data rate of optical transceivers to escalate and accelerate. It has taken 5 years from 10G to 40G, then 4 years from 40G to 100G, and may likely take only 3 years from 100G to 400G. All the export data in the future data centers need to go through the internal mass operation. The flow of the east-west direction in the data center is turbulent, and the flat data center architecture makes the 100G optical transceiver market continue to grow at a high speed.

According to the report of third party institution, the number of global super large data centers will be over 500 by the end of 2019. Then 83% of the public cloud servers and 86% of the public cloud load will be loaded in the super data centers, the ratio of deployment of super data center servers will rise from 21% to 47%, the ratio of processing capacity will be increased from 39% to 68%, and the ratio of traffic will be increased from 34% to 53%.

The direction of the main data flow of traditional 3-tier data center is from top to bottom or from south to north, while the direction of the main data flow of flat spine-leaf data center is from east to west.