Hi,everyone Our production ceph cluster the version is hammer have 3 monitors and 300+ osds.Monitor daemon runs on host diffrent from osd daemon. openstack vm runs on rbd.Now we need to maintain monitor host so must shutdown monitor host a moment, one by one. But keep two monitor host online all the time. What is the impact of monitor down on vm? How to do reduce the impact? _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx