Traditional private clouds are on their way out. I’m talking about the open standards-based stuff that was huge a couple of years, but fell behind in features or functions compared to the public cloud providers. Other factors included complexity of installation and configuration, as well as the fact that you still owned hardware and needed data center space.
I still consider the concept of a “private cloud” a useful architectural pattern, in some cases. Some enterprises have special needs where traditional private clouds still fit—few and far between, but they do exist.
