Fibre Channel Over Ethernet (FCoE) provides 10GB bandwidth to both IP traffic and Fibre traffic. The technology is well suited to a step-by-step changeover and can peacefully co-exist with your current infrastructure. FCoE provides a better chance for fuller utilization of the available bandwidth by placing both storage traffic and IP traffic on the same infrastructure. It also provides built-in QoS. The technology will continue to evolve and improve, but the time is now, gradually.”]
Source: https://www.darkreading.com/database-security/proceed-gradually-with-fibre-channel-over-ethernet