374d0fa214
1. Added new directory for compute concepts 2. Populated sections with existing content 3. Removed old compute-design-tech section 4. Added landing page for compute to mimic networking and storage Change-Id: I9633b1d8bd30194026fcaf71b6335fac54e946d2 Implements: blueprint arch-guide-restructure
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Choosing a hypervisor
A hypervisor provides software to manage virtual machine access to the underlying hardware. The hypervisor creates, manages, and monitors virtual machines. OpenStack Compute (nova) supports many hypervisors to various degrees, including:
Probably the most important factor in your choice of hypervisor is your current usage or experience. Aside from that, there are practical concerns to do with feature parity, documentation, and the level of community experience.
For example, KVM is the most widely adopted hypervisor in the OpenStack community. Besides KVM, more deployments run Xen, LXC, VMware, and Hyper-V than the others listed. However, each of these are lacking some feature support or the documentation on how to use them with OpenStack is out of date.
The best information available to support your choice is found on the Hypervisor Support Matrix and in the configuration reference.
Note
It is also possible to run multiple hypervisors in a single deployment using host aggregates or cells. However, an individual compute node can run only a single hypervisor at a time.