"So ... we can effectively back up the configuration of our ESXi hosts (- 10 minute changes worst case) simply by backing up the state tardisk, then if the worst happens we can restore this and have our ESXi host with complete configuration restored in a matter of minute. Luckily PowerCLI makes this very easy for us, the below script can be run as a scheduled task and will backup the state tardisk as often as the scheduled task is run."
"This table contains a list of systems, motherboards, storage controllers and network cards that have been tested and found to work with ESX 4.x or ESXi 4.x Installable. Please check out the source column for a system you are considering using as some systems will include special steps to enable ESX / ESXi to run on that system or have other issues to overcome. None of these systems are supported by VMWare for running ESX."
"Finally, and somewhat overdue, here is the vReference card updated for vSphere 4.1. At first glance it looks the same, but there was quite a few little additions here and there."