EM 12c: Discovering an ASM Target in an Upgraded Enterprise Manager 12.1.0.4 Cloud Control Gives Error: Failed To Save Target In Agent: ORA-2050 (Doc ID 1923369.1)

Last updated on JUNE 01, 2016

Applies to:

Enterprise Manager for Oracle Database - Version 12.1.0.6.0 to 12.1.0.6.0 [Release 12.1]
Enterprise Manager Base Platform - Version 12.1.0.4.0 to 12.1.0.4.0 [Release 12.1]
Information in this document applies to any platform.

Symptoms

Upgraded OMS to 12.1.0.4 from previous release.

From Cloud Control try to discover Cluster ASM Target. For that Navigate to 

Setup > Add Target > Add Targets Manually.
  select 'Add Targets Using Guided Process' radio button.
  select Target types as 'Oracle Database, Listener and Automatic Storage Management'.
  select host and do discovery, next page will show the Cluster ASM and ASM instances.

If you select 'Cluster ASM', click 'Configure' and then try to save(No configuration changes done). it fails with :

Failed to save target in agent: ORA-20500: Target with matching attributes already exists

If you select 'Cluster ASM', provide password and save, without any configure, this would succeed.

Changes

 This issue will not happen for a new 12.1.0.4 Installation of Cloud Control, but only for an upgraded 12.1.0.4 Cloud Control.

Cause

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