Set Threshold Values for Tablespace Alerts

After an upgrade, thresholds for Oracle Database 18c Tablespace Alerts are set to null, disabling the alerts.

You must identify tablespaces in the database that are candidates for monitoring, and you must set the appropriate threshold values for these tablespaces.

In newly-created Oracle Database 18c installations, the following values are used as defaults:

  • 85% full warning

  • 97% full critical