Power on server,but cinder-volume state down

hi,buddy

i deployed openstack follow doc https://docs.openstack.org/project-deploy-guide/charm-deployment-guide/ussuri/index.html

and type cinder service-list .
±-----------------±------------------------±-----±--------±------±---------------------------±--------±----------------±--------------+
| Binary | Host | Zone | Status | State | Updated_at | Cluster | Disabled Reason | Backend State |
±-----------------±------------------------±-----±--------±------±---------------------------±--------±----------------±--------------+
| cinder-scheduler | cinder | nova | enabled | up | 2020-10-16T03:09:53.000000 | - | - | |
| cinder-scheduler | juju-b38b07-1-lxd-2 | nova | enabled | down | 2020-10-14T08:31:18.000000 | - | - | |
| cinder-volume | cinder@cinder-ceph | nova | enabled | up | 2020-10-16T03:09:52.000000 | - | - | up |
| cinder-volume | juju-b38b07-1-lxd-2@LVM | nova | enabled | down | 2020-10-14T08:32:15.000000 | - | - | - |
±-----------------±------------------------±-----±--------±------±---------------------------±--------±----------------±--------------+

can anyone tell me how can i make cinder-colume and cinder-scheduler up?

thank u a lot…