We're thinking of upgrading to version 5 from our current version 4 install. Would be the biggest benefits? Sounds like the new licensing model is quite a bit more expensive. Are there any papers available explaining it?
You can look Whats new of vsphere5 here --> http://www.vmware.com/files/pdf/products/vsphere/vmware-what-is-new-vsphere5.pdf
Cheers, Yours Udin
Looks like this sends me to some sort of health check script.