We are planning to upgrade our VMWare ISCSI environment from 1GB to 10GB. We currently have the Qlogic 4062c 1gb cards. These cards were ok, we had a couple incidents over the last couple years which were related to the card. Qlogic does not have a 10gb card, so our SAN vendor recommended Chelsio and Intel. Since they are using Chelsio 10g adapters in their controller we have decided to purchase these. We are looking to purchase the Chelsio S320E cards. Has anyone tired these cards on their ESX hosts, if so have you ran across any issues? Also have you seen any performance issues with using the software initiator vs hardware initiator for these cards?