Quick Start RBD mapping

 ## On your admin node:
* Create the Pool / RBD image for the client.
$ sudo ceph osd pool create {client name}.{Description} {PG Count}
$ sudo rbd create {RBD Image Name} --size {RBD Image Size in MB}

* Create the keys for your phprados client:
$ sudo ceph auth get-or-create client.{client name}.rbd osd 'allow rwx' mon 'allow r' -o /etc/ceph/ceph.client.{client name}.rbd.keyring

- Note: You can grant access to only one pool for tighter security, example:
$ sudo ceph auth get-or-create client.{client name}.rbd osd 'allow rwx pool={PoolName}' mon 'allow r' -o /etc/ceph/ceph.client.{client name}.rbd.keyring

* Copy the /etc/ceph/ceph.conf and /etc/ceph/ceph.client.{client name}.rbd.keyring to your RBD Client's /etc/ceph folder

## On the Client:
* Map the RBD
$ sudo rbd -p {PoolName} map {RBD Image Name} --id={client name}.rbd

* Verify the mapped RBD
$ sudo rbd showmapped --id {client name}.rbd

* Format / mount the mapped RBD. Example:
$ sudo mkfs.ext4 -m0 /dev/rbd0
$ sudo mount /dev/rbd0 /mnt