[ceph-users] Cephadm: module not found

Hi, I'm experimenting ceph on a (small) test cluster. I'm using version 15.2.5 deployed with cephadm. I was trying to do some "disaster" testing, such as wiping a disk in order to simulate a hardware failure, destroy the osd and recreate it, all of which I managed to do successfully. However, a few hours after this test, the orchestrator failed with no apparent reason. I tried to disable and reenable cephadm, but with no luck: # ceph orch ls Error ENOENT: No orchestrator configured (try `ceph orch set backend`) # ceph orch set backend cephadm Error ENOENT: Module not found What could have happened? Is there some way to reenable cephadm? Thanks, Marco