Hi, we have faced some problems when creating volumes to add to VMs, to see what was happening I activated the Debug=True mode of Cinder in the cinder.conf file. I see that when I try to create a new volume I get the following in the log: "DEBUG cinder.volume.drivers.rbd connecting to (conf=/etc/ceph/ceph.conf, timeout=-1) _do_conn /usr/lib/python3.6/site-packages/cinder/volume/drivers/rbd.py:431” I’m using OpenStack Train and Ceph Octopus. When I check with openstack volume service list +------------------+----------------------+------+---------+-------+----------------------------+ | Binary | Host | Zone | Status | State | Updated At | +------------------+----------------------+------+---------+-------+----------------------------+ | cinder-scheduler | spsrc-controller-1 | nova | enabled | up | 2021-05-11T10:06:39.000000 | | cinder-scheduler | spsrc-controller-2 | nova | enabled | up | 2021-05-11T10:06:47.000000 | | cinder-scheduler | spsrc-controller-3 | nova | enabled | up | 2021-05-11T10:06:39.000000 | | cinder-volume | rbd:volumes@ceph-rbd | nova | enabled | down | 2021-04-11T10:48:42.000000 | | cinder-backup | spsrc-mon-2 | nova | enabled | up | 2021-05-11T10:06:47.000000 | | cinder-backup | spsrc-mon-1 | nova | enabled | up | 2021-05-11T10:06:44.000000 | | cinder-backup | spsrc-mon-3 | nova | enabled | up | 2021-05-11T10:06:47.000000 | +------------------+----------------------+------+---------+-------+——————————————+ So cinder-volume is Down, I compare "cinder-backup" Ceph config with "cinder-volume", and they are equal! so why only one of them works? diff /etc/kolla/cinder-backup/ceph.conf /etc/kolla/cinder-volume/ceph.conf I go inside the "cinder_volume" container docker exec -it cinder_volume /bin/bash Try listing cinder volumes, works! rbd -p cinder.volumes --id cinder -k /etc/ceph/ceph.client.cinder.keyring ls Any Ideas. Kind regards.