Behind VMware and Microsoft, OpenStack is the third most popular IaaS software technology for private clouds. There is strong interest around OpenStack, with 80% of CIOs polled expecting to use OpenStack in three years, up from 60% using the technology today. However, as we mentioned previously, the percentage of workloads running on OpenStack within an organization is low. While there are dozens of OpenStack distributions and multiple ways to deploy and consume OpenStack, two of the most popular versions, Red Hat OpenStack and VMware Integrated OpenStack.
Cloud Foundry is one of the most popular PaaS software technologies for private clouds. Cloud Foundry can be deployed across multiple different IaaS platforms, including Amazon AWS, OpenStack and VMware vSphere or vCloud Air. According to data from Gartner, the two most popular commercial versions of Cloud Foundry are Pivotal Cloud Foundry and IBM Bluemix, which we discuss in detail later in this document.
VMWare is a leader in traditional environments, but the top three public cloud vendors (Amazon AWS, Microsoft Azure, Google Cloud
Platform) do not use VMware as their virtualization layer.
