0.사전점검 Confirm you will have enough space on your cluster after removing your OSDs to properly handle the deletion Confirm the remaining OSDs and their placement groups (PGs) are healthy in order to handle the rebalancing of the data Do not remove too many OSDs at once Wait for rebalancing between removing multiple OSDs 1.디스크 교체전 우리는 ceph cluster를 host-based cluster방식으로 구성 ceph cluster CR에서 useA..