Open Stack

Please see https://docs.openstack.org/mitaka/config-reference/compute/hypervisor-kvm.html
This should provide you with the information are looking for
OpenStack Docs: KVM<https://docs.openstack.org/mitaka/config-reference/compute/hypervisor-kvm.html>
Configure Compute backing storage¶. Backing Storage is the storage used to provide the expanded operating system image, and any ephemeral storage.
docs.openstack.org



________________________________
From: Manuel Sopena Ballesteros <manuel.sb at garvan.org.au>
Sent: Tuesday, April 2, 2019 9:37 AM
To: Gary Kotton; openstack at lists.openstack.org
Subject: RE: qemu emulation or virtualiztion, which one is it using?


Ok,



Thank you for your prompt response. I can see this in the nova.conf file:



[libvirt]

…

virt_type = kvm

…



Can I assume qemu is using virtualization through kvm?



Thank you



Manuel



From: Gary Kotton [mailto:gkotton at vmware.com]
Sent: Tuesday, April 2, 2019 5:22 PM
To: Manuel Sopena Ballesteros; openstack at lists.openstack.org
Subject: Re: qemu emulation or virtualiztion, which one is it using?



Hi,

This depends on the virtualization driver configured on your hypervisors. This can be one of many. For example, KVM, VMware VC, Hyper-V...

Thanks

Gary



________________________________

From: Manuel Sopena Ballesteros <manuel.sb at garvan.org.au>
Sent: Tuesday, April 2, 2019 9:15 AM
To: openstack at lists.openstack.org
Subject: qemu emulation or virtualiztion, which one is it using?



Hi,



“openstack hypervisor list” command shows qemu as type of hypervisor.

How do I know it is using virtualization and not qemu emulation?



Thank you



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