[ceph@admin ~]$ ceph status
    cluster 5f66b4ff-aa32-4e6f-ae5c-589455d5c7c2
     health HEALTH_WARN
            240 pgs degraded
            240 pgs stuck inactive
            240 pgs stuck unclean
            240 pgs undersized
     monmap e2: 3 mons at {mon1=192.168.56.6:6789/0,mon2=192.168.56.7:6789/0,mon3=192.168.56.8:6789/0}
            election epoch 12, quorum 0,1,2 mon1,mon2,mon3
     osdmap e44: 4 osds: 4 up, 4 in
      pgmap v97: 240 pgs, 1 pools, 0 bytes data, 0 objects
            136 MB used, 20299 MB / 20435 MB avail
                 240 undersized+degraded+peered