Enterprise Manager: monitor number of DB_FILES to get alerted
Hello,
is there already a metric which alerts when the number of "used" db_files reaches a threshold?
for example
db_files is set to 200 and we have already 170 datafiles on the system. I want to get alerted if datafile number reaches 180 so that I have enough time to plan a downtime (for prod environment) .
If there is no metric is there a smart SQL which I can use as a Metric Extension?