networking capabiliies of the Brocade 10GB CNA

A next logical step for server admins that have deployed Brocade 10GB CNA for virtualized server and/or iSCSI SAN  connecivity, is to exploit the converged networking capabiliies of the Brocade 10GB CNA. Once installed, Brocade CNA can eliminate the cost and complexity of addiional NICs, Fibre Channel HBAs and their associated cabling Brocade 10GB CNA offer broad operaing system support, including Windows Server, Windows Server, SuSE Linux, Red Hat Linux and VMware. The result is data center managers who are planning to migrate their LAN or iSCSI SAN to 10GbE, can also plan on standardizing on one 10GbE CNA that  combined with the top-of-rack IBM Converged Switch B32
(Brocade 8000 FCoE switch) and Brocade Data Center Fabric Manager (DCFM), provide a powerful 10
Gbps solution that improves TCO by consolidating FC and Ethernet traffic through FCoE. This new
technology helps organizations significantly reduce their power, cooling, and cabling costs through the
use of a single adapter.The QLogic 10Gb CNA is a PCI Express 2.0 x4 10Gb Converged Network Adapter and is available for both IBM System x and IBM Power Systems servers. For IBM Power Systems, the adapter is known as the 10 Gb FCoE PCIe Dual Port Adapter (Feature 5708). The adapter connects to SFP+ Multimode Fiber SR optical modules. The System x version also supports SFP+ Active Copper cables, depending on the Ethernet switch used.anyone here test the nexus 5000 with 10Gb CNA card on ESX 4 with the virtual machine? I got a very slow performance and yet to sort out until now with my POC and need some advice here. We use the VMXNET3 which show up as 10Gb connection in the virtual machine, but the bandwidth utilization could not even reach 1Gbps from the virtual machine when we do file copy and network speed test.