About the bind/unbind feature, we have discussed on the nova PTG[1], they are in our task list. Welcome to join us if you have interest. We also use kolla-ansible to deploy cyborg, but found no problem right now, if you meet error, pls report bugs on the launchpad[2] and fix them if you have time. [1] https://etherpad.opendev.org/p/nova-xena-ptg#L375 [2] https://bugs.launchpad.net/openstack-cyborg 发件人: Di XiaoLi [mailto:xiaolihope1008@163.com] 发送时间: 2021年12月13日 16:46 收件人: Alex Song (宋文平) <songwenping@inspur.com> 抄送: openstack-discuss@lists.openstack.org 主题: 回复：答复: [lists.openstack.org代发][cyborg][nova][qa]Question about Accelerator unbinding Yes, Alex, this command does confuse me a bit. Hope we can support bind/unbind accelerators in the future. I also found some errors in kolla-ansible when deploying cyborg. I want to know how active is the cyborg project? Shall we fix the deploy bug in kolla-ansible and backport the bug fixes to released branches? 在2021年12月13日 16:35， <mailto:songwenping@inspur.com> Alex Song (宋文平)<songwenping@inspur.com> 写道： Anyway, we should shield this cmd to avoid misoperation of arq and lead the instance start error for now. 发件人: Alex Song (宋文平) 发送时间: 2021年12月13日 16:27 收件人: 'xiaolihope1008@163.com <mailto:xiaolihope1008@163.com> ' <xiaolihope1008@163.com <mailto:xiaolihope1008@163.com> >; 'openstack-discuss@lists.openstack.org <mailto:openstack-discuss@lists.openstack.org> ' <openstack-discuss@lists.openstack.org <mailto:openstack-discuss@lists.openstack.org> > 主题: 答复: [lists.openstack.org代发][cyborg][nova][qa]Question about Accelerator unbinding Emm, the arq unbind cmd is used of deleting instance. Recently we donot support hot-plug/unplug device for instance. We only support binding devices when create instance and unbinding devices when delete instance. Best Regards. 发件人: Di XiaoLi [mailto:xiaolihope1008@163.com] 发送时间: 2021年12月13日 9:54 收件人: openstack-discuss <openstack-discuss@lists.openstack.org <mailto:openstack-discuss@lists.openstack.org> > 主题: [lists.openstack.org代发][cyborg][nova][qa]Question about Accelerator unbinding hi, Cyborg and nova team: 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. Here are my questions: 1. What is the function of the arq unbind command in cyborg ? 2. How to unbind the accelerator which bounded to vm? Does nova or cyborg support this function now？ Here are my steps: step1: openstack accelerator arq unbind ed205084-f58d-4fad-99b4-327a1398858f +---------------------+--------------------------------------+ | Field | Value | +---------------------+--------------------------------------+ | uuid | ed205084-f58d-4fad-99b4-327a1398858f | | state | Unbound | | device_profile_name | ssd | | hostname | None | | device_rp_uuid | None | | instance_uuid | None | | attach_handle_type | | | attach_handle_info | {} | +---------------------+--------------------------------------+ step2: login vm and check the device, but it still here. step3: stop vm and start vm, met the following error: "nova.exception.AcceleratorRequestOpFailed: Failed to get accelerator requests: Cyborg returned no accelerator requests for instance ca77ef4e-421c-4c6c-9d76-7618a90ec921"