VMware Workstation 8
The best thing about VMware, is I can also virtualize ESXi inside VMware Workstation! So on my laptop, in VMware Workstation, I can run multiple ESXi servers, that in turn have VMs inside them. Even better is the fact that I can have 64bit guests inside my ESXi servers running inside VMware Workstation. Sounds confusing as I type, so here’s a diagram:
In order to run ESXi inside VMware workstation, we simply need to select “VMware ESXi 5″ as the operation system of the guest VM we are creating.
Then, Edit the VM’s Settings, and under the Hardware tab, and processors, check the box to Virtualize Intel VT.
The option to run ESXi inside of VMware workstation is great, especially for when you don’t have a lot of physical hardware to test with. I have also used it to test H/A scenarios.