Question was: Does EM12c support DB12c. Answer: 11.2.0.3 does, 11.2.0.2 does not. It appears that EM12c Cloud Control 12.1.0.2 does NOT like the *released* DB 12c Listener or ASM. (I did not go far enough to monitor the prod 12c DB, as I wanted EM to monitor ASM correctly first.) It is necessary to use the DB 12.1.0.4 Plugin to monitor DB 12c. To use this plugin, I had to upgrade to EM 12c 12.1.0.3 /Hans -- //www.freelists.org/webpage/oracle-l