Folks on this list might like to take note of Doc ID 2068817.1
<https://support.oracle.com/epmos/faces/DocumentDisplay?id=2068817.1> . In
summary, you might be missing tablespaces from the
dba_tablespace_usage_metrics view on 12.1; if you are using cloud control
to monitor tablespaces for space then you might, therefore, be blind to
developing issues. I imagine the same bug might affect other monitoring
solutions.
--
Niall Litchfield
Oracle DBA
http://www.orawin.info
