Hello,   The active CM will have two green lights near the serial port connector, the passive one will be yellow.    If you use SSH it will only connect to the active controller.   If you use the serial port on the passive after login you will be at a CLI> prompt.   The active controller will show the Group Name as the prompt after you login  I.e.    PS-Group>    Regards,  Don   
I'm trying to check the active CM on the equallogic ps4110, I ask for help
How to know the active CM on the equallogic ps4110