FCoE Speed
Rapid progress in the speed increase of Ethernet networks versus a slower pace of speed increase in the traditional Fibre Channel networks makes FCoE a compelling technology for high throughput storage-area networks.
During the time of writing this book, rarely do Fibre Channel connections from the endpoints to the first hop FCoE switches exceed the speed of 8 Gb. At the same time, server CNAs and FCoE storage arrays offer at least 10 Gb FCoE connectivity speeds. The difference might not seem significant, however, due to different encoding schemes; 10 Gb FCoE achieves 50% more throughput than 8 Gb Fibre Channel, despite appearing to be only 2 Gb faster. Table 11-2 depicts the throughputs and encoding for the 8 Gb Fibre Channel and ...
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