查看ceph 集群狀態
1.ssh 登陸任一MON主機
2.執行 sudo ceph health detail 命令
啟動、停止、重啟、查看MON進程
1.登陸到MON的服務器，執行如下命令
sudo systemctl start ceph-mon@mon-host sudo systemctl stop ceph-mon@mon-host sudo systemctl restart ceph-mon@mon-host sudo systemctl status ceph-mon@mon-host
啟動、停止、重啟、查看OSD所有和單個進程
1.登陸到OSD 的服務器，對服務器上的所有OSD操作
sudo systemctl start ceph-osd@* sudo systemctl stop ceph-osd@* sudo systemctl restart ceph-osd@* sudo systemctl status ceph-osd@* 2.如上把@* 替換為OSD的ID 如@22，即可執行對應ID OSD的操作
查看OSD 與HOST 的歸屬關系
1.登陸到任意一台MON主機，執行命令
sudo ceph osd tree
查看OSD node上 所有OSD data目錄和 掛載磁盤
1.ls /var/lib/ceph/osd/
2. sudo mount |grep osd 如：sudo mount|grep osd /dev/sdh1 on /var/lib/ceph/osd/ceph-222 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdl1 on /var/lib/ceph/osd/ceph-227 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdd1 on /var/lib/ceph/osd/ceph-218 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdb1 on /var/lib/ceph/osd/ceph-216 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdf1 on /var/lib/ceph/osd/ceph-220 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdj1 on /var/lib/ceph/osd/ceph-224 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdi1 on /var/lib/ceph/osd/ceph-223 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdk1 on /var/lib/ceph/osd/ceph-225 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdg1 on /var/lib/ceph/osd/ceph-221 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sde1 on /var/lib/ceph/osd/ceph-219 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdc1 on /var/lib/ceph/osd/ceph-217 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota) /dev/sdm1 on /var/lib/ceph/osd/ceph-226 type xfs (rw,nodev,noexec,noatime,nodiratime,attr2,inode64,noquota)
