“opmnctl status“, this will show you status of all the OBIEE core services “opmnctl startall” or “opmnctl stopall” run “opmnctl startproc ias-component= ”The details of this command can be found here: Opmn

E:\MiddelwareHome\instances\instance1\bin>opmnctl status

Processes in Instance: instance1
---------------------------------+--------------------+---------+---------
ias-component                    | process-type       |     pid | status
---------------------------------+--------------------+---------+---------
coreapplication_obiccs1          | OracleBIClusterCo~ |    4396 | Alive
coreapplication_obisch1          | OracleBIScheduler~ |    4996 | Alive
coreapplication_obijh1           | OracleBIJavaHostC~ |    4212 | Alive
coreapplication_obips1           | OracleBIPresentat~ |    3688 | Alive
coreapplication_obis1            | OracleBIServerCom~ |    4868 | Alive

You can monitor them with the FMW console.