Of course, in more modern systems, the use of advanced LVMs instead of older partitions makes this a little more flexible so that more control over the process can exist. But all of the core problems still exist.
Some vendors try to market this mechanism as "RAID virtualization", which isn't a completely crazy name due to the layers of abstraction, but it makes it sound valuable when, in reality, it is not. RAID virtualization when used for the purpose of enabling hot or live RAID array growth is generally a good idea. Used as a kludge to enable bad ideas, it remains bad.
