## Detemos todos los servcios ceph-services
systemctl stop ceph-mon.target
systemctl stop ceph-mgr.target
systemctl stop ceph-mds.target
systemctl stop ceph-osd.target
# avoid that they're being restarted by systemd the next boot (the low level way)
rm -rf /etc/systemd/system/ceph*
## be really sure they're stopped:
killall -9 ceph-mon ceph-mgr ceph-mds
## then do
rm -rf /var/lib/ceph/mon/ /var/lib/ceph/mgr/ /var/lib/ceph/mds/
## then retry purge
pveceph purge
apt purge ceph-mon ceph-osd ceph-mgr ceph-mds
