FCoE allows Fibre Channel traffic to run over Ethernet networks using encapsulation. This convergence of networks simplifies infrastructure by using a single network for both storage and LAN traffic. Standards like FCoE and DCB/CEE are being developed to enable lossless Ethernet environments required for storage traffic. Early solutions involve direct server attachment to top-of-rack FCoE switches, but solutions are expanding to include blade servers and multi-hop configurations. Widespread adoption will take time as standards mature and solutions expand beyond proof-of-concept deployments.

1. Converged Data Center: FCoE, iSCSI, and the Future of Storage Networking Stuart Miniman, Technologist, Office of the CTO EMC Corporation

8. FCoE Extends FC on a Single Network FC network FC storage Ethernet Network FCoE Switch Lossless Ethernet Links 2 options SAN sees host as FC Network Driver FC Driver Converged Network Adapter Server sees storage traffic as FC Ethernet FC FCoE SW Stack Standard 10G NIC

9. Time To Widespread Adoption 1990 2000 2010 1980 Defined 73 Standard 83 Widespread 93 Defined 85 Standard 94 Widespread 03 iSCSI Defined 00 02 Widespread 08 Standard Standard 10 Gigabit Ethernet 02 09 Widespread 07 09 ?? Defined Standard Widespread

11. Ethernet Cabling Different short-distance option (QSFP) Low power 5-10m distance (Rack solution) N/A Twinax Copper / SFP+DA (direct attach) Expect shift to optical w/ 40/100Gb OM3 100m OM4 125m Most backbone deployments are optical OM2 82m OM3 300m Rare < 1% Ethernet, but Standard for FC OM2 ( orange ) OM3 ( aqua ) OM4* ( aqua ) Optical (multimode) / LC Not supported in initial standard Some products on market, but not for FCoE yet Cat6 55m; Cat 6a 100m > 99% of existing cabling (lots of Cat 5e) Cat6 or Cat6a Copper (10GBase-T) / RJ-45 40/100Gb 10Gb 1Gb Cable Type / Connector

16. Storage Drivers and Server Virtualization NIC NIC vNIC vNIC vSCSI vSCSI *iSCSI initiator can also be in the VM virtual switch Hypervisor driver FC HBA FC HBA LAN traffic CNA CNA FCoE follows FC path Hypervisor iSCSI traffic

17. Storage Drivers and Server Virtualization NIC NIC vNIC vNIC vSCSI vSCSI FCoE software in the guest would send traffic through the vSwitch to the vNIC FC HBA FC HBA Hypervisor SW FCoE SW FCoE Hypervisor driver No FCoE access here currently virtual switch vSwitches from ESX (including Cisco 1000v option) and Hyper-V are not Lossless

31. FCoE Timeline Supported 2010 FCoE top-of-rack switches 2nd Generation CNAs Windows, Linux, VMware Cisco UCS and Vblock IBM BladeCenter Native FCoE storage FCoE blades for FC and Ethernet directors UNIX support Open FCoE Expanded multi-hop solutions More embedded/server solutions 10Gb DCB LOMs 10G-BaseT w/ FCoE TRILL solutions Direct Connect (FC-BB-6) 40GbE/100GbE Future