Check manual page of scaleio_mdm
EMC ScaleIO: Cluster status
This check monitors the cluster states of all MD members (MDMs). The
cluster mode and health status will be in the output and the state will
change to WARN if the health status is "Degraded" or "Not synchronized"
and to CRIT if it is "Error" or "Disconnected".
Also the number of active and replicated members are in the output. The
state will change to CRIT if one member is not active or replicated.
Finally the health status of each member is in the output if it is not
"Normal". In this case the state will change accordingly as described above.
Only one service is created