On the controller node
Make sure NetBackup OpenStack Datamover API and horizon containers are in a running state and no other NetBackup OpenStack container is deployed on controller nodes. When the role for these containers is not controller, check on respective nodes according to configured roles_data.yaml.
[root@overcloud-controller-0 heat-admin]# podman ps | grep nbos 26fcb9194566 rhosptrainqa.ctlplane.localdomain:8787/nbosdmapi:9.0-rhosp16.1 kolla_start 5 days ago Up 5 days ago nbosdmapi 094971d0f5a9 rhosptrainqa.ctlplane.localdomain: 8787/nbos-horizon-plugin:9.0-rhosp16.1 kolla_start 5 days ago Up 5 days ago horizon