Configure Clients to use Ceph Storage like follows

. | +--------------------+ | +-------------------+ | [dlp.server.world] |10.0.0.30 | 10.0.0.x| [ Client ] | | Ceph-Deploy +-----------+-----------+ | | | | | | +--------------------+ | +-------------------+ +----------------------------+----------------------------+ | | | |10.0.0.51 |10.0.0.52 |10.0.0.53 +-----------+-----------+ +-----------+-----------+ +-----------+-----------+ | [node01.server.world] | | [node02.server.world] | | [node03.server.world] | | Object Storage +----+ Object Storage +----+ Object Storage | | Monitor Daemon | | | | | | | | | | | +-----------------------+ +-----------------------+ +-----------------------+

	For example, mount as Filesystem on a Client.
[1]	Create MDS (MetaData Server) on a Node which you'd like to set MDS. It sets to node01 on this exmaple.

[cent@dlp ceph]$  ceph-deploy mds create node01

[2]	Create at least 2 RADOS pools on MDS Node and activate MetaData Server. For pg_num which is specified at the end of a creating command, refer to official document and decide appropriate value. ⇒ http://docs.ceph.com/docs/master/rados/operations/placement-groups/

[cent@node01 ~]$  sudo chmod 644 /etc/ceph/ceph.client.admin.keyring  # create pools [cent@node01 ~]$  ceph osd pool create cephfs_data 128  pool 'cephfs_data' created [cent@node01 ~]$  ceph osd pool create cephfs_metadata 128  pool 'cephfs_metadata' created # enable pools [cent@node01 ~]$  ceph fs new cephfs cephfs_metadata cephfs_data  new fs with metadata pool 2 and data pool 1 # show list [cent@node01 ~]$  ceph fs ls  name: cephfs, metadata pool: cephfs_metadata, data pools: [cephfs_data ] [cent@node01 ~]$  ceph mds stat  e5: 1/1/1 up {0=node01=up:active}

[3]	Mount CephFS on a Client.

[root@client ~]#  yum -y install http://download.ceph.com/rpm-infernalis/el7/noarch/ceph-release-1-1.el7.noarch.rpm  [root@client ~]#  yum -y install ceph-fuse # get admin key [root@client ~]#  ssh cent@node01.server.world "sudo ceph-authtool -p /etc/ceph/ceph.client.admin.keyring" > admin.key  cent@node01.server.world's password: [root@client ~]#  chmod 600 admin.key [root@client ~]#  mount -t ceph node01.server.world:6789:/ /mnt -o name=admin,secretfile=admin.key  [root@client ~]#  df -hT  Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/centos-root xfs 27G 1.3G 26G 5% / devtmpfs devtmpfs 2.0G 0 2.0G 0% /dev tmpfs tmpfs 2.0G 0 2.0G 0% /dev/shm tmpfs tmpfs 2.0G 8.3M 2.0G 1% /run tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup /dev/vda1 xfs 497M 151M 347M 31% /boot 10.0.0.51:6789:/ ceph 80G 19G 61G 24% /mnt