Enterprise Manager 13c - 'Tablespace Space Used %' metric sends false alarms

Situation is ... Metric 'Tablespace Space Used %' is used to monitor the free space of the tablespaces. Sometimes You'll get an alarm that the Tablespace has reached it's critical value. But, the tablespace's data files are auto extensible and far away from the max size and the files are located on an ACFS which knows also auto-extensibility - or better said - an auto-resize feature. There is also...

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