Tablespace Space Used % Alerts when Tablespace has Plenty of Free Space by Autoextend ON (Doc ID 2101403.1)

Last updated on JULY 20, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.5 and later
Information in this document applies to any platform.
***Checked for relevance on 21-Jul-2017***

Symptoms

Getting 'Tablespace Space Used %' alerts from OEM when plenty of free space is available for a tablespace considering the autoextend ON for datafiles.

For example:
From the output of dba_tablespace_usage_metrics, tablespace used_percentage is 80%.

Autoextend is ON for all the datafiles for USERS tablespace, so, alerts should not be triggered since the datafiles will autoextend if space is needed.

Cause

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