CephBasics

Check Ceph cluster status

The command :

ceph -s

shows the actual status of the Ceph cluster :

[root@cephq1 ~]# ceph -s
    cluster 82766e04-585b-49a6-a0ac-c13d9ffd0a7d
     health HEALTH_OK
     monmap e1: 3 mons at {cephq2=192.168.41.2:6789/0,cephq3=192.168.41.3:6789/0,cephq4=192.168.41.4:6789/0}
            election epoch 8, quorum 0,1,2 cephq2,cephq3,cephq4
     osdmap e78: 6 osds: 6 up, 6 in
      pgmap v1293: 192 pgs, 2 pools, 0 bytes data, 0 objects
            27920 kB used, 4021 GB / 4106 GB avail
                 192 active+clean

The following command displays a real-time summary of the status of the cluster, and major events :

ceph -w