Open Stack

They are probably thinking of Vmware ESXi, which is both an operating
system kernel, named vmkernel, and a hypervisor.

OpenStack is not a hypervisor. It /uses /hypervisors to manage virtual
machines. Furthermore, OpenStack is written in Python, so that, as a
minimum, your "baremetal" would have to be able to run Python code.

On 7/2/2018 11:45 PM, Jay Pipes wrote:
> On 07/02/2018 09:45 AM, Houssam ElBouanani wrote:
>> Hi,
>>
>> I have recently finished installing a minimal OpenStack Queens
>> environment for a school project, and was asked whether it is
>> possible to deploy an additional compute node on bare metal, aka
>> without an underlying operating system, in order to eliminate the
>> operating system overhead and thus to maximize performance.
>
> Whomever asked you about this must be confusing a *hypervisor* with an
> operating system. Using baremetal means you eliminate the overhead of
> the *hypervisor* (virtualization). It doesn't mean you eliminate the
> operating system. You can't do much of anything with a baremetal
> machine that has no operating system on it.
>
> Best,
> -jay
>
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