On Wed, Mar 22, 2023 at 12:00 PM morgan cox <morgancoxuk(a)gmail.com&gt; wrote: Preliminary task is to remove the device from VM OS point of view. This way you don't get error messages when you unplug it from oVirt UI If not used, not mounted, you can simply run echo 1 > /sys/block/device-name/device/delete Pay attention to device-name, that should match your intended one! Then I think you should go under the disks subtab of the running vm, select the disk and deactivate it. Then you can remove it. In case you already went through this, what is your oVirt version and which type of virtual disk (virtio/virtio-scsi, ecc..)? See also here the documentation for other details: https://www.ovirt.org/documentation/virtual_machine_management_guide/inde... HIH, Gianluca

Thank you both of you, especially for the quick responses... The solution I used was as Konstantin said deactivate the disk first .... Disks can now be removed. Cheers !