On Thu, Oct 15, 2020 at 3:20 PM Gilboa Davara <gilboad@gmail.com> wrote:
>
> On Thu, Oct 15, 2020 at 2:38 PM Nir Soffer <nsoffer@redhat.com> wrote:
>>
>> > I've got room to spare.
>> > Any documentation on how to achieve this (or some pointers where to look)?
>>
>> It should be documented in ovirt.org, and in RHV documentation:
>> https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.4/html/administration_guide/
>>
>> > I couldn't find LVM / block device under host devices / storage domain / etc and Google search returned irrelevant results.
>>
>> I tested locally, LVM devices are not available in:
>> Compute > Hosts > {hostname} > Host Devices
>>
>> Looks like libvirt does not support device mapper devices. You can try:
>> # virsh -r nodedev-list
>>
>> To see supported devices. The list seems to match what oVirt displays
>> in the Host Devices tab.
>>
>> So you only option it to attach the entire local device to the VM, either using
>> pci passthrough or as a scsi disk.
>>
>> Nir
>
>
> Full SCSI passthrough per "desktop" VM is an overkill for this user case. (Plus, I don't see MD devices in the list, only pure SATA/SAS devices).
> Any idea if there are plans to add support for LVM devices (or any other block device)?

I don't think there is such a plan, but it makes sense to support such usage.

Please file ovit-engine RFE explaining the use case, and we can consider
it for a future version.

Nir