If you are following Cisco Unified computing solution, here is some good news. The latest firmware version 1.4 is officially support direct attach FCoE Storage protocol without require the additional SAN switch as previous version. Both Netapp and EMC are officially supported and certified to direct attach with the Cisco UCS without a SAN switch require. This will reduce the complex layer it require to deploy especially for those environment who are not FC users previously.

I found some very good post over the internet, you can refer the URL below for more information about the new update provided in Firmware 1.4

Unified Computing Blog

M. Sean McGee