IBM Flex System V7000 Expansion Enclosure 4939H29 Manuale Utente

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Chapter 11. SAN Connections and Configuration 
443
Draft Document for Review January 29, 2013 12:52 pm
8068ch11-SAN Config.fm
Figure 11-8   FCoE protocol mapping
Figure 11-9 on page 444 shows another perspective on FCoE layering compared to other 
storage networking technologies. The FC and FCoE layers are shown with the other storage 
networking protocols along with iSCSI.
In general, an FCoE network contains servers, lossless Ethernet (DCB-capable) switches, 
Fibre Channel Forwarders (FCFs) that provide FC fabric services, and storage devices. An 
existing FC SAN may or may not be present. With compute node connectivity to IBM Flex 
System V7000 Storage Node, the connection link is via I/O module lossless Ethernet FCF 
switches, a connected FC SAN does not have to be present.