OMV into KVM guest and smart Device Read Identity Failed: empty IDENTIFY data

Hello

I use KVM and virtio disk. Openmediavault is a virtual machine, in this VM I cannot run smart on the virtio disk.

smartctl --all -d sat /dev/vdb
Smartctl: Device Read Identity Failed: empty IDENTIFY data

A mandatory SMART command failed: exiting

I use openmediavault 2.2.6, No problem with data on this virtio disk

any help ?
sorry for my bad english
thanks

Ide or sata ! I use the real hard drive, I will try...

smart command works if I change to SATA/IDE but it's not real parameters.

smartctl display a 'qemu disk' with correct size but with false smart parameters.

I try on another KVM server, and I got same problem.