1.前期準備：centos6.5 minimal版本3臺
選擇其中一臺作為一個安裝節點,能無密碼登入其他機器。ssh-keygen
ssh-keygen -i ~/.ssh/id_rsa.pub node1 node2 node3
2.
命令：
yum install cepy-deploy -y
所有節點安裝lsb
yum install lsb -y
關閉防火牆，後面osd服務會向mon服務請求6789埠，防火牆開了訪問不了
service iptables stop
建立mon
ceph-deploy new node1 node2 node3
ceph-deploy mon create-initial
建立osd
在所有的osd伺服器上執行：
mkdir -p /var/lib/ceph/osd
mkdir -p /var/lib/ceph/osd
執行命令
ceph-deploy prepare node1:/usr/local/ceph01 node2:/usr/local/ceph02 node3:/usr/local/ceph03
ceph-deploy activate node1:/usr/local/ceph01 node2:/usr/local/ceph03 node3:/usr/local/ceph03
最後執行
ceph -s
如果報錯：
ceph-deploy gatherkeys node1
ceph-deploy gatherkeys node2
ceph-deploy gatherkeys node3
如果正常，OK