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<span>hi, Cyborg and nova team:</span></div><div><span>I am using cyborg with "Wallaby" release to manage my accelerator devices, while I'm trying to unbind the accelerator I found that the device was not actually unbound from the virtual machine. </span></div><div><span>Here are my questions:</span></div><div><span>1. What is the function of the arq unbind command in cyborg ?</span></div><div><span>2. How to unbind the accelerator which bounded to vm? Does nova or cyborg support this function now？</span></div><div><span><br></span></div><div><span>Here are my steps:</span></div><div>step1: openstack accelerator arq unbind ed205084-f58d-4fad-99b4-327a1398858f<br>+---------------------+--------------------------------------+<br>| Field | Value |<br>+---------------------+--------------------------------------+<br>| uuid | ed205084-f58d-4fad-99b4-327a1398858f |<br>| state | Unbound |<br>| device_profile_name | ssd |<br>| hostname | None |<br>| device_rp_uuid | None |<br>| instance_uuid | None |<br>| attach_handle_type | |<br>| attach_handle_info | {} |<br>+---------------------+--------------------------------------+<br></div><div> step2: login vm and check the device, but it still here.</div><div>step3: stop vm and start vm, met the following error:</div><div>"nova.exception.AcceleratorRequestOpFailed: Failed to get accelerator requests: Cyborg returned no accelerator requests for instance ca77ef4e-421c-4c6c-9d76-7618a90ec921"</div>
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