Hello, I'm pretty new to ceph deployment. I have setup my first cephfs cluster using cephadm. Initially, I deployed ceph in 3 virtualbox instances that I called cephfs-cluster-node-{0, 1, 2} just to test things. Later, I added 5 more real hardware nodes. Later I decided I'd remove the virtualboxes, so I drained the osds and removed the hosts. Suddenly, ceph status detail started reporting HEALTH_WARN 1 stray host(s) with 1 daemon(s) not managed by cephadm [WRN] CEPHADM_STRAY_HOST: 1 stray host(s) with 1 daemon(s) not managed by cephadm stray host cephfs-cluster-node-2 has 1 stray daemons: ['mon.X'] The cephfs-cluster-node-2 is no longer listed among hosts, it is (and has been for tens of hours) offline (powered down). The mon.X doesn't even belong to that node, it is one of the real hardware nodes. I am unaware of mon.X ever running on cephfs-cluster-node-2 (never noticed it among systemd units). Where does cephadm shell -- ceph status detail come to the conclusion there is something stray? How can I address this? Thank you for any insights Jakub