This is related to VMWare ESX 4. It has been a while I do not deal with VMWare.
I remembered to move a Physical Server to a VM Host, we should use the VM Converter.
I remembered to move all the vm machines from Host A to Host B, we have to use the VMotion (and this VMotion is one component of VCenter).
1) What are other functions or tools (except VMotion) of VCenter?
2) What other things that I should pay attention when dealing with VMWare ESX 4 or 5?