root@ceph2:~# ceph mgr module ls
{
"always_on_modules": [
"balancer",
"crash",
"devicehealth",
"orchestrator",
"osd_support",
"pg_autoscaler",
"progress",
"rbd_support",
"status",
"telemetry",
"volumes"
],
"enabled_modules": [
"iostat",
"restful",
"test_orchestrator"
[ERR] : Failed to load ceph-mgr modules: orchestrator, test_orchestrator, volumes