Configure Clients to use Ceph Storage like follows

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 exmaple, Create a block device and mount it on a Client.
[1]	First, Configure Sudo and SSH key-pair for a user on a Client and next, Install Ceph from Ceph admin Node like follows.

[cent@dlp ceph]$  ceph-deploy install client  [cent@dlp ceph]$  ceph-deploy admin client

[2]	Create a Block device and mount it on a Client.

[cent@client ~]$  sudo chmod 644 /etc/ceph/ceph.client.admin.keyring  # create a disk with 10G [cent@client ~]$  rbd create disk01 --size 10240 # show list [cent@client ~]$  rbd ls -l  NAME SIZE PARENT FMT PROT LOCK disk01 10240M 2 # map the image to device [cent@client ~]$  sudo rbd map disk01  /dev/rbd0 # show mapping [cent@client ~]$  rbd showmapped  id pool image snap device 0 rbd disk01 - /dev/rbd0 # format [cent@client ~]$  sudo mkfs.xfs /dev/rbd0 # mount [cent@client ~]$  sudo mount /dev/rbd0 /mnt [cent@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 8.4M 2.0G 1% /run tmpfs tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup /dev/vda1 xfs 497M 151M 347M 31% /boot /dev/rbd0 xfs 10G 33M 10G 1% /mnt