部署完ceph集群（active+clean状态）之后，
ceph-deploy install ceph-clientceph-deploy admin chmod +r /etc/ceph/ceph.client.admin.keyringrbd pool init rbdrbd create foo --size 4096 --image-feature layering [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]rbd map foo --name client.admin [-m {mon-IP}] [-k /path/to/ceph.client.admin.keyring]mkfs.ext4 -m0 /dev/rbd/rbd/foomkdir /mnt/ceph-block-devicemount /dev/rbd/rbd/foo /mnt/ceph-block-devicecd /mnt/ceph-block-device原文：https://www.cnblogs.com/nineep/p/8989957.html