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EM 12c: Enterprise Manager 12c Cloud Control RAC Target Tablespace Metric Collection Error: ORA-12850: Could not allocate slaves on all specified instances (Doc ID 1680642.1)

Last updated on SEPTEMBER 08, 2021

Applies to:

Enterprise Manager for Oracle Database - Version and later
Information in this document applies to any platform.


The Enterprise Manager (EM) 12c Cloud Control Agent is failing to collect the tbspAllocation metric with the following error:


Querying the MGMT$DB_TABLESPACES view show no rows for 12c RAC database targets.
This view is used in a script to produce the daily tablespace metric reports.

Originally the data is populated into mgmt$db_tablespaces via the agent's oracle_dbconfig and tbspAllocation metrics



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