本次课程演示在centos 7下对ceph各个服务进程的管理。主要包括monitor和OSD进程。

Monitor服务

• 检查状态

[root@ceph-node1 ceph]# systemctl status ceph-mon@ceph-node1.service

• 停止服务

[root@ceph-node1 ceph]# systemctl stop ceph-mon@ceph-node1.service

• 启动服务

[root@ceph-node1 ceph]# systemctl start ceph-mon@ceph-node1.service

OSD服务

• 检查状态

[root@ceph-node2 vagrant]# systemctl status ceph-osd@3.service

• 起停服务

# ceph osd stat
     osdmap e26: 6 osds: 6 up, 6 in
            flags sortbitwise,require_jewel_osds
# systemctl stop ceph-osd@3.service
# ceph osd stat
     osdmap e27: 6 osds: 5 up, 6 in
            flags sortbitwise,require_jewel_osds
# systemctl start ceph-osd@3.service
# ceph osd stat
     osdmap e28: 6 osds: 6 up, 6 in
            flags sortbitwise,require_jewel_osds