rbd-mirror

koniambo

New Member
Jul 4, 2025
18
0
1
Hi,

I have 2 clusters ceph one is hyper converged proxmox and the other one is cephadm managed. I want to mirrored them to test if it's possible.
But by following the proxmox documentation about rbd-mirroring, rbd mirror wont start am I missing something ?
Setting up rbd-mirror (19.2.3-pve2) ...
Created symlink '/etc/systemd/system/multi-user.target.wants/ceph-rbd-mirror.target' → '/usr/lib/systemd/system/ceph-rbd-mirror.target'.
Created symlink '/etc/systemd/system/ceph.target.wants/ceph-rbd-mirror.target' → '/usr/lib/systemd/system/ceph-rbd-mirror.target'.
Processing triggers for man-db (2.13.1-1) ...
root@hp365-25-1:~# systemctl enable ceph-rbd-mirror.target
root@hp365-25-1:~# cp /usr/lib/systemd/system/ceph-rbd-mirror@.service /etc/systemd/system/ceph-rbd-mirror@.service
root@hp365-25-1:~# sed -i -e 's/setuser ceph.*/setuser root --setgroup root/' /etc/systemd/system/ceph-rbd-mirror@.service
root@hp365-25-1:~# systemctl enable --now ceph-rbd-mirror@rbd-mirror.$(hostname).service
Created symlink '/etc/systemd/system/ceph-rbd-mirror.target.wants/ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service' → '/etc/systemd/system/ceph-rbd-mirror@.service'.
Job for ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service failed because the control process exited with error code.
See "systemctl status ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service" and "journalctl -xeu ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service" for details.
root@hp365-25-1:~# systemctl status ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service
× ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service - Ceph rbd mirror daemon
Loaded: loaded (/etc/systemd/system/ceph-rbd-mirror@.service; enabled; preset: enabled)
Active: failed (Result: exit-code) since Wed 2025-11-05 17:33:24 CET; 5min ago
Duration: 77ms
Invocation: 753a5e4d33624cf7808423e52bd19d50
Main PID: 4032250 (code=exited, status=1/FAILURE)

nov. 05 17:33:24 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Scheduled restart job, restart counter is at 3.
nov. 05 17:33:24 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Start request repeated too quickly.
nov. 05 17:33:24 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Failed with result 'exit-code'.
nov. 05 17:33:24 hp365-25-1.intra.inist.fr systemd[1]: Failed to start ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service - Ceph rbd mirror daemon.
nov. 05 17:35:52 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Start request repeated too quickly.
nov. 05 17:35:52 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Failed with result 'exit-code'.
nov. 05 17:35:52 hp365-25-1.intra.inist.fr systemd[1]: Failed to start ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service - Ceph rbd mirror daemon.
nov. 05 17:38:06 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Start request repeated too quickly.
nov. 05 17:38:06 hp365-25-1.intra.inist.fr systemd[1]: ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service: Failed with result 'exit-code'.
nov. 05 17:38:06 hp365-25-1.intra.inist.fr systemd[1]: Failed to start ceph-rbd-mirror@rbd-mirror.hp365-25-1.intra.inist.fr.service - Ceph rbd mirror daemon.

Thanks for your help :) !