Open Stack

Let others chime in but all I would say is that VirtIO is much faster than
IDE so it's worth patching images if performance matters.

On Mon, May 22, 2023 at 10:39 AM Work Ceph <work.ceph.user.mailing at gmail.com>
wrote:

> Hello guys,
> We have a situation where an image requires an IDE bus in KVM. Therefore,
> we configured it in OpenStack to have the IDE bus being used. However, when
> we add new volumes to this VM (server), all of them are being allocated as
> IDE volumes; therefore, we are limited to 4 volumes in total in the VM. Is
> it possible to mix different types of volumes in a VM in OpenStack? I know
> that in other platforms, such as when we use KVM directly, proxmox, Apache
> CloudStack, we can do such combinations, but we were not able to achieve it
> in OpenStack.
>
> Have you guys worked with similar use cases? I know that I can convert the
> image to use virtIO or iSCSI bus, and to do that I need to fix/patch the
> operating system inside the image. However, I would like to check if there
> is a method to use a root volume of a VM as IDE, and other volumes as
> virtio to avoid the limit of volumes that IDE has.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.openstack.org/pipermail/openstack-discuss/attachments/20230522/8d0ec19d/attachment.htm>