A couple of days ago VMware officially validated an end-to-end Fibre Channel over Ethernet (FCoE) hardware configuration provided by Cisco and NetApp.
The solution includes Cisco Nexus 5000 Series switches and NetApp FAS3100 and FAS600 series SANs, now included in the vSphere 4.1 hardware compatibility guide.
To be fair, the three companies already presented a hardware configuration that could support end-to-end FCoE n December 2009, with a paper titled Designing Secure Multi-Tenancy into Virtualized Data Centers.
In that document anyway FCoE was suggested as an optional alternative to standard Ethernet or Fibre Channel, which doesn’t imply VMware was supporting the protocol at that time.