教你快速搭建天问一休机（二） -- 搭建存储节点（一）基础配置

本教程以五节点为例进行搭建，五节点规划如下：

主机名	Public IP	Cluster IP	功能
cnosd001	192.168.2.171	192.168.3.171	mon mgr iscsi-gw osd deploy
cnosd002	192.168.2.172	192.168.3.172	mon mgr iscsi-gw osd
cnosd003	192.168.2.173	192.168.3.173	mon mgr iscsi-gw osd
cnosd004	192.168.2.174	192.168.3.174	mon osd
cnosd005	192.168.2.175	192.168.3.175	mon osd

注：如下命令在各个节点都需执行

# cat >> /etc/hosts << EOF

# Public Network
192.168.2.171 cnosd001 cnosd001.tianwen
192.168.2.172 cnosd002 cnosd002.tianwen
192.168.2.173 cnosd003 cnosd003.tianwen
192.168.2.174 cnosd004 cnosd004.tianwen
192.168.2.175 cnosd005 cnosd005.tianwen
EOF

# systemctl disable firewalld.service

# sed -i 's@\(^SELINUX=\).*@\1disabled@g' /etc/selinux/config

# useradd cephadmin
# echo "ceph123" | passwd cephadmin --stdin
# echo "cephadmin ALL = (root,ceph) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/cephadmin
# chmod 0440 /etc/sudoers.d/cephadmin