I wanted to test an Openfiler as a solution forHA and vMotion with ESX Server and vCenter. Using Openfiler is a great way to save some money on expensive SANs and for home lab testing and learning, this choice is just great. I did not have 3 physical boxes (2 for ESX hosts and one for Openfiler) so I opted for a hybrid solution, where I’m actually running one ESX server inside of VMware workstation.

via How to configure OpenFiler iSCSI Storage for use with VMware ESX. | ESX Virtualization.