[openstack-dev] [nova] usefulness of device parameter at volumeAttachment

Géza Gémes geza.gemes at ericsson.com
Sun May 24 08:07:01 UTC 2015


libvirt/xen or xenapi? PVM or HVM?

Thank you!

Geza

On 05/23/2015 02:21 PM, Fox, Kevin M wrote:
> I believe xen supports it.
>
> Thanks,
> Kevin *
> *
> ------------------------------------------------------------------------
> *From:* Géza Gémes
> *Sent:* Saturday, May 23, 2015 2:00:32 AM
> *To:* OpenStack Development Mailing List (not for usage questions)
> *Subject:* [openstack-dev] [nova] usefulness of device parameter at 
> volumeAttachment
>
> Hi,
>
> When someone calls nova volume-attach or the block-device-mapping
> parameter at boot, it is possible to specify a device name for the
> guest. However I couldn't find any guest OS which would honor this. E.g.
> with libvirt/kvm, if the guest has two virtio disks already (vda and
> vdb), specifying vdf would be ignored and the disk will be attached as
> vdc in the guest.
> I propose to deprecate this option and at boot where it is not optional
> to accept only auto as an option.
>
> Best regards,
>
> Geza
>
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