Starting JVMD and ADP
su – oracle
/u01/app/oracle/middleware/oms/bin/emctl extended oms jvmd start -all
/u01/app/oracle/middleware/oms/bin/emctl extended oms adp start -all
More options
http://docs.oracle.com/cd/E24628_01/doc.121/e24473/emctl.htm#BABGFGEG