Volume service down but working

recently noted that the command openstack volume service list shows 2 services down with last update marked 2022, but my cloud seams to be working properly .
Why does this two services are marked as Down?

mchc@mchc:/data/git/openstack-cfg/client$ openstack volume  service list
+------------------+-------------------------+------+---------+-------+----------------------------+
| Binary           | Host                    | Zone | Status  | State | Updated At                 |

+------------------+-------------------------+------+---------+-------+----------------------------+
| cinder-volume    | cinder@cinder-ceph      | nova | enabled | up    | 2025-10-08T20:00:53.000000 |
| cinder-scheduler | juju-5025f7-0-lxd-1     | nova | enabled | down  | 2022-03-03T22:07:52.000000 |
| cinder-volume    | juju-5025f7-0-lxd-1@LVM | nova | enabled | down  | 2022-03-03T22:07:40.000000 |
| cinder-scheduler | cinder                  | nova | enabled | up    | 2025-10-08T20:00:53.000000 |